Year Mon Area 1874 6 95.6 1874 7 235.0 1874 8 687.4 1874 9 454.4 1874 10 38.2 1874 11 49.2 1874 12 208.1 1875 1 80.5 1875 2 53.3 1875 3 292.4 1875 4 269.3 1875 5 190.9 1875 6 139.3 1875 7 132.0 1875 8 62.1 1875 9 127.9 1875 10 9.8 1875 11 109.1 1875 12 53.1 1876 1 .4 1876 2 27.5 1876 3 10.4 1876 4 174.7 1876 5 6.9 1876 6 .0 1876 7 12.4 1876 8 6.4 1876 9 2.9 1876 10 1.0 1876 11 .0 1876 12 28.7 1877 1 149.3 1877 2 203.6 1877 3 57.3 1877 4 5.2 1877 5 18.9 1877 6 65.2 1877 7 .0 1877 8 2.8 1877 9 36.1 1877 10 49.2 1877 11 .0 1877 12 .0 1878 1 1.1 1878 2 16.5 1878 3 .0 1878 4 49.5 1878 5 .4 1878 6 53.2 1878 7 39.2 1878 9 .4 1878 9 .0 1878 10 55.4 1878 11 10.0 1878 12 22.8 1879 1 .0 1879 4 .0 1879 4 .0 1879 4 .0 1879 5 .0 1879 6 6.0 1879 7 .0 1879 8 27.8 1879 9 35.2 1879 10 39.9 1879 11 23.0 1879 12 9.8 1880 1 .0 1880 2 174.3 1880 3 224.5 1880 4 94.0 1880 5 180.0 1880 6 421.9 1880 7 120.0 1880 8 113.0 1880 9 631.9 1880 10 311.6 1880 11 307.5 1880 12 365.0 1881 1 220.0 1881 2 327.9 1881 3 383.7 1881 4 375.7 1881 5 203.3 1881 6 137.3 1881 7 311.3 1881 8 678.8 1881 9 638.9 1881 10 653.6 1881 11 534.1 1881 12 683.4 1882 1 478.9 1882 2 272.3 1882 3 294.7 1882 4 248.8 1882 5 312.9 1882 6 602.1 1882 7 227.6 1882 8 307.4 1882 9 410.6 1882 10 636.4 1882 11 765.5 1882 12 1015.9 1883 1 170.0 1883 2 286.6 1883 3 430.0 1883 4 146.9 1883 5 375.5 1883 6 156.0 1883 7 355.2 1883 8 425.1 1883 9 96.1 1883 10 310.1 1883 11 478.2 1883 12 488.6 1884 1 346.9 1884 2 972.7 1884 3 924.5 1884 4 421.1 1884 5 96.5 1884 6 298.8 1884 7 163.5 1884 8 273.0 1884 9 391.9 1884 10 743.6 1884 11 407.7 1884 12 121.8 1885 1 611.4 1885 2 104.7 1885 3 236.9 1885 4 148.0 1885 5 458.0 1885 6 637.8 1885 7 598.1 1885 8 183.0 1885 9 139.2 1885 10 187.9 1885 11 171.7 1885 12 258.2 1886 1 169.9 1886 2 49.8 1886 3 21.9 1886 4 370.2 1886 5 90.2 1886 6 316.5 1886 7 42.0 1886 8 46.9 1886 9 30.3 1886 10 143.6 1886 11 13.4 1886 12 .0 1887 1 58.4 1887 2 .0 1887 3 33.0 1887 4 28.2 1887 5 41.4 1887 6 136.0 1887 7 19.8 1887 8 113.5 1887 9 30.1 1887 10 114.0 1887 11 .7 1887 12 .4 1888 1 .0 1888 2 10.3 1888 3 .0 1888 4 73.8 1888 5 3.7 1888 6 .0 1888 7 12.7 1888 8 1.6 1888 9 4.3 1888 10 .6 1888 11 .0 1888 12 122.8 1889 1 .0 1889 2 2.6 1889 3 .0 1889 4 18.3 1889 5 25.1 1889 6 .0 1889 7 .0 1889 8 3.4 1889 9 .0 1889 10 .0 1889 12 1.4 1889 12 .0 1890 1 5.4 1890 2 35.9 1890 3 .6 1890 4 71.8 1890 5 6.0 1890 6 5.0 1890 7 .0 1890 8 15.3 1890 9 154.6 1890 10 150.5 1890 11 3.6 1890 12 142.9 1891 1 47.6 1891 2 58.8 1891 3 210.3 1891 4 158.7 1891 5 185.4 1891 6 290.9 1891 7 458.6 1891 8 943.1 1891 9 354.1 1891 10 1114.6 1891 11 364.9 1891 12 288.8 1892 1 309.7 1892 2 785.8 1892 3 420.5 1892 4 373.1 1892 5 489.8 1892 6 576.5 1892 7 770.6 1892 8 1191.1 1892 9 964.8 1892 10 566.5 1892 11 455.6 1892 12 332.7 1893 1 290.5 1893 2 360.1 1893 3 341.8 1893 4 496.3 1893 5 477.4 1893 6 360.8 1893 7 339.2 1893 8 537.8 1893 9 651.3 1893 10 574.3 1893 11 739.4 1893 12 426.3 1894 1 848.5 1894 2 484.1 1894 3 266.3 1894 4 465.4 1894 5 847.5 1894 6 493.2 1894 7 861.4 1894 8 924.0 1894 9 932.5 1894 10 318.7 1894 11 454.0 1894 12 227.0 1895 1 265.6 1895 2 435.9 1895 3 486.4 1895 4 573.8 1895 5 815.8 1895 6 630.0 1895 7 613.5 1895 8 83.0 1895 9 1018.1 1895 10 509.4 1895 11 852.9 1895 12 443.8 1896 1 343.6 1896 2 87.0 1896 3 395.7 1896 4 184.3 1896 5 311.2 1896 6 2.3 1896 7 119.6 1896 8 88.9 1896 9 55.4 1896 10 764.5 1896 11 87.1 1896 12 46.9 1897 1 259.1 1897 2 201.8 1897 3 348.8 1897 4 293.9 1897 5 239.3 1897 6 78.3 1897 7 3.7 1897 8 10.3 1897 9 10.6 1897 10 179.3 1897 11 55.9 1897 12 17.8 1898 1 714.5 1898 2 318.2 1898 3 54.5 1898 4 95.1 1898 5 3.7 1898 6 6.7 1898 7 22.4 1898 8 22.4 1898 9 217.5 1898 10 89.0 1898 11 298.1 1898 12 203.5 1899 1 5.0 1899 2 1.5 1899 3 .0 1899 4 5.2 1899 5 9.8 1899 6 .0 1899 7 161.9 1899 8 53.9 1899 9 .0 1899 10 10.9 1899 11 2.7 1899 12 3.6 1900 1 25.1 1900 2 54.1 1900 3 84.5 1900 4 4.4 1900 5 19.9 1900 6 53.9 1900 7 59.4 1900 8 6.4 1900 9 11.1 1900 10 5.6 1900 11 .0 1901 1 10.5 1901 1 .0 1901 2 .0 1901 3 .0 1901 5 12.3 1901 5 .0 1901 6 215.4 1901 7 32.7 1901 9 .0 1901 9 .0 1901 10 .2 1901 11 .0 1902 1 .0 1902 1 .0 1902 2 .3 1902 3 .0 1902 5 173.7 1902 5 .0 1902 6 37.3 1902 7 5.7 1902 8 .3 1902 9 2.2 1902 10 16.9 1902 11 88.7 1902 12 143.7 1903 1 2.9 1903 2 16.1 1903 3 80.4 1903 4 125.2 1903 5 108.6 1903 6 74.5 1903 7 69.9 1903 8 80.5 1903 9 37.7 1903 10 56.4 1903 11 251.3 1903 12 332.5 1904 1 314.0 1904 2 226.6 1904 3 199.7 1904 4 228.6 1904 5 279.4 1904 6 94.8 1904 7 243.5 1904 8 245.0 1904 9 184.5 1904 10 59.5 1904 11 439.1 1904 12 290.5 1905 1 711.2 1905 2 593.7 1905 3 594.1 1905 4 824.0 1905 5 211.6 1905 6 363.4 1905 7 422.2 1905 8 1080.1 1905 9 756.2 1905 10 368.9 1905 11 2078.4 1905 12 1319.8 1906 1 407.4 1906 2 460.9 1906 3 271.8 1906 4 768.8 1906 5 541.6 1906 6 938.1 1906 7 585.6 1906 8 1176.5 1906 9 299.4 1906 10 322.8 1906 11 24.2 1906 12 273.5 1907 1 760.6 1907 2 785.2 1907 3 711.9 1907 4 244.9 1907 5 490.6 1907 6 161.3 1907 7 49.8 1907 8 208.7 1907 9 352.1 1907 10 856.0 1907 11 729.7 1907 12 831.9 1908 1 453.1 1908 2 225.4 1908 3 95.2 1908 4 56.7 1908 5 22.1 1908 6 181.1 1908 7 111.6 1908 8 102.5 1908 9 736.8 1908 10 1026.0 1908 11 191.2 1908 12 587.8 1909 1 449.1 1909 2 906.5 1909 3 265.5 1909 4 704.9 1909 5 120.3 1909 6 81.9 1909 7 25.5 1909 8 506.0 1909 9 44.8 1909 10 36.1 1909 11 192.7 1909 12 288.2 1910 1 466.8 1910 2 123.5 1910 3 7.2 1910 4 171.4 1910 5 33.8 1910 6 73.8 1910 7 25.5 1910 8 128.5 1910 9 .0 1910 10 1.5 1910 11 221.7 1910 12 13.9 1911 1 .0 1911 2 .0 1911 3 25.9 1911 4 29.3 1911 5 44.8 1911 6 38.2 1911 7 27.6 1911 8 9.9 1911 9 5.5 1911 10 50.5 1911 11 18.5 1911 12 .4 1912 3 4.9 1912 3 .0 1912 3 .0 1912 4 .0 1912 5 .7 1912 6 .4 1912 7 .8 1912 8 .0 1912 9 .0 1912 10 .0 1912 11 .0 1912 12 .0 1913 1 7.5 1913 2 9.2 1913 3 21.0 1913 4 .0 1913 7 .0 1913 7 .0 1913 7 .0 1913 9 7.0 1913 9 .0 1913 10 3.5 1913 11 15.3 1913 12 .0 1914 1 4.0 1914 2 7.2 1914 3 .5 1914 4 39.8 1914 5 253.3 1914 6 69.8 1914 7 16.7 1914 8 .2 1914 9 297.7 1914 10 205.0 1914 11 29.3 1914 12 139.5 1915 1 124.8 1915 2 303.5 1915 3 296.2 1915 4 306.9 1915 5 729.8 1915 6 478.8 1915 7 526.1 1915 8 248.5 1915 9 368.1 1915 10 485.7 1915 11 443.5 1915 12 194.4 1916 1 165.0 1916 2 337.2 1916 3 225.5 1916 4 552.8 1916 5 496.5 1916 6 459.2 1916 7 790.1 1916 8 540.2 1916 9 315.8 1916 10 371.6 1916 11 627.1 1916 12 374.8 1917 1 523.1 1917 2 1008.8 1917 3 186.1 1917 4 807.4 1917 5 641.3 1917 6 576.8 1917 7 915.4 1917 8 1058.0 1917 9 2035.1 1917 10 992.4 1917 11 415.7 1917 12 475.1 1918 1 1231.3 1918 2 935.1 1918 3 536.2 1918 4 564.0 1918 5 542.6 1918 6 546.0 1918 7 321.1 1918 8 868.9 1918 9 1203.5 1918 10 420.3 1918 11 853.7 1918 12 505.4 1919 1 60.3 1919 2 361.1 1919 3 1075.5 1919 4 824.4 1919 5 324.8 1919 6 1064.8 1919 7 867.5 1919 8 211.8 1919 9 491.6 1919 10 356.5 1919 11 399.4 1919 12 544.5 1920 1 202.8 1920 2 169.0 1920 3 248.4 1920 4 338.2 1920 5 58.7 1920 6 214.0 1920 7 418.0 1920 8 213.1 1920 9 60.0 1920 10 150.4 1920 11 306.8 1920 12 98.9 1921 1 217.4 1921 2 97.1 1921 3 12.1 1921 4 290.3 1921 5 319.3 1921 6 497.1 1921 7 265.1 1921 8 340.5 1921 9 144.6 1921 10 258.5 1921 11 314.7 1921 12 247.4 1922 1 227.6 1922 2 21.9 1922 3 229.0 1922 4 1017.1 1922 5 81.2 1922 6 127.8 1922 7 9.7 1922 8 12.0 1922 9 25.6 1922 10 1.0 1922 11 16.5 1922 12 4.4 1923 1 386.0 1923 2 101.7 1923 3 1.3 1923 4 16.3 1923 5 6.2 1923 6 15.6 1923 7 60.2 1923 8 27.7 1923 9 .6 1923 10 39.8 1923 11 31.5 1923 12 70.9 1924 1 25.7 1924 2 1.4 1924 3 62.2 1924 4 33.2 1924 5 19.7 1924 6 110.7 1924 7 401.3 1924 8 353.8 1924 9 364.4 1924 10 367.7 1924 11 356.9 1924 12 567.9 1925 1 123.2 1925 2 35.0 1925 3 62.2 1925 4 107.4 1925 5 223.7 1925 6 671.5 1925 7 441.1 1925 8 129.5 1925 9 312.8 1925 10 456.8 1925 11 533.8 1925 12 995.6 1926 1 2174.1 1926 2 2170.1 1926 3 483.5 1926 4 356.9 1926 5 199.9 1926 6 243.2 1926 7 944.8 1926 8 331.7 1926 9 134.4 1926 10 957.7 1926 11 1115.0 1926 12 258.8 1927 1 879.3 1927 2 837.9 1927 3 359.3 1927 4 609.9 1927 5 574.9 1927 6 396.2 1927 7 547.4 1927 8 350.9 1927 9 126.8 1927 10 146.8 1927 11 240.0 1927 12 199.5 1928 1 195.9 1928 2 850.6 1928 3 474.0 1928 4 955.6 1928 5 428.2 1928 6 261.0 1928 7 860.6 1928 8 1044.5 1928 9 774.2 1928 10 1159.4 1928 11 788.7 1928 12 355.0 1929 1 777.8 1929 2 791.2 1929 3 171.7 1929 4 226.1 1929 5 513.5 1929 6 548.0 1929 7 434.3 1929 8 188.0 1929 9 157.8 1929 10 94.7 1929 11 755.5 1929 12 1681.1 1930 1 2267.5 1930 2 920.7 1930 3 264.0 1930 4 165.0 1930 5 320.8 1930 6 339.1 1930 7 179.5 1930 8 84.5 1930 9 100.1 1930 10 268.6 1930 11 477.4 1930 12 235.3 1931 1 140.0 1931 2 168.9 1931 3 601.5 1931 4 357.2 1931 5 330.2 1931 6 164.2 1931 7 159.4 1931 8 47.4 1931 9 38.0 1931 10 104.7 1931 11 24.4 1931 12 231.5 1932 1 166.1 1932 2 51.0 1932 3 107.2 1932 4 146.5 1932 5 179.7 1932 6 282.4 1932 7 235.1 1932 8 6.0 1932 9 .1 1932 10 2.6 1932 11 72.7 1932 12 116.5 1933 1 266.3 1933 2 199.1 1933 3 547.8 1933 4 167.7 1933 5 14.9 1933 6 15.8 1933 7 36.2 1933 8 11.3 1933 9 .1 1933 10 3.9 1933 11 38.0 1933 12 4.2 1934 1 .7 1934 2 47.4 1934 3 49.1 1934 4 1.2 1934 5 11.5 1934 6 109.7 1934 7 91.3 1934 8 101.5 1934 9 8.7 1934 10 17.7 1934 11 10.8 1934 12 54.6 1935 1 25.5 1935 2 52.5 1935 3 61.0 1935 4 92.0 1935 5 23.1 1935 6 54.8 1935 7 93.3 1935 8 142.1 1935 9 319.9 1935 10 390.2 1935 11 595.8 1935 12 503.7 1936 1 110.7 1936 2 600.0 1936 3 383.6 1936 4 282.0 1936 5 407.5 1936 6 122.0 1936 7 422.2 1936 8 390.5 1936 9 455.0 1936 10 271.5 1936 11 599.0 1936 12 603.8 1937 1 1016.4 1937 2 880.2 1937 3 1321.9 1937 4 929.1 1937 5 1524.3 1937 6 1425.8 1937 7 1491.8 1937 8 2320.6 1937 9 1701.3 1937 10 1309.4 1937 11 1877.4 1937 12 286.3 1938 1 705.9 1938 2 2285.8 1938 3 509.2 1938 4 374.7 1938 5 672.0 1938 6 790.6 1938 7 943.9 1938 8 924.4 1938 9 507.6 1938 10 741.7 1938 11 1610.4 1938 12 771.3 1939 1 668.6 1939 2 427.5 1939 3 304.2 1939 4 325.3 1939 5 1048.1 1939 6 1116.2 1939 7 718.5 1939 8 939.2 1939 9 1366.0 1939 10 351.1 1939 11 595.4 1939 12 384.3 1940 1 200.5 1940 2 962.8 1940 3 437.6 1940 4 906.7 1940 5 257.1 1940 6 318.6 1940 7 196.5 1940 8 631.8 1940 9 897.8 1940 10 236.9 1940 11 378.3 1940 12 353.2 1941 1 465.0 1941 2 342.6 1941 3 260.2 1941 4 416.4 1941 5 27.1 1941 6 104.1 1941 7 539.5 1941 8 552.5 1941 9 615.9 1941 10 1079.8 1941 11 773.6 1941 12 371.8 1942 1 129.4 1942 2 133.4 1942 3 722.2 1942 4 817.5 1942 5 595.6 1942 6 162.2 1942 7 77.5 1942 8 4.4 1942 9 134.8 1942 10 15.7 1942 11 13.0 1942 12 178.8 1943 1 162.1 1943 2 35.1 1943 3 489.6 1943 4 635.9 1943 5 588.8 1943 6 209.2 1943 7 29.2 1943 8 224.6 1943 9 87.7 1943 10 214.2 1943 11 239.9 1943 12 116.5 1944 1 97.3 1944 2 26.8 1944 3 1.5 1944 4 2.1 1944 5 .0 1944 6 6.5 1944 7 47.5 1944 8 4.5 1944 9 6.6 1944 10 7.4 1944 11 49.4 1944 12 156.5 1945 1 194.0 1945 2 98.9 1945 3 39.9 1945 4 11.3 1945 5 7.4 1945 6 20.3 1945 7 20.4 1945 8 169.4 1945 9 258.4 1945 10 97.0 1945 11 465.9 1945 12 142.2 1946 1 121.7 1946 2 878.8 1946 3 2231.6 1946 4 961.7 1946 5 544.8 1946 6 499.7 1946 7 374.4 1946 8 2126.5 1946 9 1508.9 1946 10 1380.4 1946 11 526.9 1946 12 965.4 1947 1 1244.7 1947 2 909.2 1947 3 241.0 1947 4 847.4 1947 5 478.3 1947 6 1877.9 1947 7 1247.1 1947 8 1539.5 1947 9 1440.0 1947 10 1060.5 1947 11 1281.1 1947 12 619.7 1948 1 476.4 1948 2 263.3 1948 3 502.3 1948 4 894.9 1948 5 1900.8 1948 6 1331.9 1948 7 1314.9 1948 8 1335.7 1948 9 800.2 1948 10 606.6 1948 11 1125.3 1948 12 499.0 1949 1 606.0 1949 2 1457.1 1949 3 1285.3 1949 4 2123.9 1949 5 1048.2 1949 6 723.4 1949 7 895.9 1949 8 757.7 1949 9 1514.9 1949 10 567.8 1949 11 1377.4 1949 12 1450.7 1950 1 1016.5 1950 2 1351.7 1950 3 1385.8 1950 4 946.5 1950 5 1372.4 1950 6 1189.9 1950 7 507.6 1950 8 739.0 1950 9 385.8 1950 10 342.8 1950 11 209.1 1950 12 487.2 1951 1 376.6 1951 2 575.3 1951 3 490.3 1951 4 740.7 1951 5 1093.4 1951 6 2513.8 1951 7 1122.4 1951 8 150.5 1951 9 320.7 1951 10 689.4 1951 11 246.9 1951 12 292.8 1952 1 542.5 1952 2 417.7 1952 3 30.6 1952 4 14.9 1952 5 199.4 1952 6 12.2 1952 7 53.1 1952 8 106.1 1952 9 396.2 1952 10 125.6 1952 11 332.3 1952 12 402.5 1953 1 269.0 1953 2 163.6 1953 3 8.9 1953 4 36.8 1953 5 379.0 1953 6 200.8 1953 7 115.7 1953 8 .3 1953 9 255.6 1953 10 115.1 1953 11 2.0 1953 12 1.4 1954 1 2.3 1954 2 .4 1954 3 1.3 1954 4 .7 1954 5 .3 1954 6 .8 1954 7 1.8 1954 8 9.6 1954 9 25.4 1954 10 .7 1954 11 12.1 1954 12 7.2 1955 1 81.6 1955 2 493.3 1955 3 168.0 1955 4 10.7 1955 5 69.6 1955 6 273.3 1955 7 67.3 1955 8 126.2 1955 9 299.1 1955 10 285.5 1955 11 560.8 1955 12 954.0 1956 1 654.5 1956 2 1441.5 1956 3 1912.2 1956 4 1128.6 1956 5 841.6 1956 6 1175.9 1956 7 1045.4 1956 8 1011.6 1956 9 1790.0 1956 10 879.2 1956 11 1191.1 1956 12 994.8 1957 1 1507.5 1957 2 1414.9 1957 3 428.1 1957 4 595.3 1957 5 572.3 1957 6 1159.4 1957 7 1740.8 1957 8 1456.2 1957 9 1432.6 1957 10 3054.2 1957 11 1883.2 1957 12 1349.7 1958 1 2302.6 1958 2 1797.3 1958 3 849.5 1958 4 2299.6 1958 5 1870.7 1958 6 1491.1 1958 7 1865.9 1958 8 1531.3 1958 9 1517.8 1958 10 933.1 1958 11 876.1 1958 12 663.7 1959 1 1238.7 1959 2 4572.1 1959 3 2065.7 1959 4 3303.2 1959 5 2125.3 1959 6 2070.2 1959 7 2117.0 1959 8 2426.2 1959 9 2879.4 1959 10 1391.6 1959 11 967.3 1959 12 1649.4 1960 1 2034.7 1960 2 1644.0 1960 3 1170.0 1960 4 744.8 1960 5 1032.7 1960 6 1118.3 1960 7 957.3 1960 8 1636.7 1960 9 1194.8 1960 10 587.5 1960 11 832.2 1960 12 1214.6 1961 1 512.0 1961 2 719.5 1961 3 236.4 1961 4 322.2 1961 5 315.3 1961 6 442.9 1961 7 559.9 1961 8 743.7 1961 9 474.5 1961 10 743.0 1961 11 288.4 1961 12 274.4 1962 1 244.8 1962 2 647.9 1962 3 435.6 1962 4 589.0 1962 5 485.8 1962 6 268.9 1962 7 99.2 1962 8 232.4 1962 9 133.7 1962 10 531.1 1962 11 268.3 1962 12 107.9 1963 1 107.5 1963 2 188.2 1963 3 107.4 1963 4 132.6 1963 5 84.4 1963 6 407.9 1963 7 320.7 1963 8 147.6 1963 9 248.3 1963 10 511.6 1963 11 431.7 1963 12 145.6 1964 1 22.0 1964 2 62.7 1964 3 63.0 1964 4 148.0 1964 5 7.7 1964 6 25.8 1964 7 23.1 1964 8 7.6 1964 9 54.5 1964 10 16.5 1964 11 22.4 1964 12 23.3 1965 1 90.3 1965 2 167.8 1965 3 102.8 1965 4 56.9 1965 5 19.2 1965 6 242.8 1965 7 15.4 1965 8 76.8 1965 9 16.3 1965 10 157.2 1965 11 111.1 1965 12 139.2 1966 1 132.4 1966 2 265.9 1966 3 233.3 1966 4 627.9 1966 5 820.9 1966 6 382.7 1966 7 287.4 1966 8 773.8 1966 9 579.3 1966 10 950.5 1966 11 644.0 1966 12 751.1 1967 1 662.5 1967 2 1313.8 1967 3 1170.3 1967 4 1584.6 1967 5 536.1 1967 6 1564.7 1967 7 893.8 1967 8 1356.3 1967 9 1665.7 1967 10 570.3 1967 11 913.5 1967 12 1296.9 1968 1 1106.4 1968 2 1885.4 1968 3 1629.5 1968 4 833.6 1968 5 782.7 1968 6 1316.2 1968 7 1253.1 1968 8 1217.5 1968 9 894.2 1968 10 756.2 1968 11 958.9 1968 12 632.2 1969 1 1155.8 1969 2 1392.9 1969 3 937.0 1969 4 2025.1 1969 5 1303.0 1969 6 674.7 1969 7 1236.6 1969 8 495.7 1969 9 643.3 1969 10 520.0 1969 11 1557.2 1969 12 1738.3 1970 1 644.7 1970 2 381.3 1970 3 834.9 1970 4 902.6 1970 5 854.7 1970 6 1452.2 1970 7 1323.0 1970 8 1159.5 1970 9 1285.6 1970 10 1192.7 1970 11 1212.3 1970 12 1527.4 1971 1 1284.2 1971 2 1407.6 1971 3 844.9 1971 4 256.7 1971 5 597.5 1971 6 797.5 1971 7 225.6 1971 8 727.3 1971 9 196.6 1971 10 270.7 1971 11 927.2 1971 12 272.3 1972 1 384.5 1972 2 192.3 1972 3 765.9 1972 4 700.8 1972 5 213.7 1972 6 511.1 1972 7 400.6 1972 8 587.5 1972 9 873.7 1972 10 201.6 1972 11 112.9 1972 12 35.9 1973 1 472.7 1973 2 514.2 1973 3 305.5 1973 4 439.8 1973 5 369.6 1973 6 209.7 1973 7 246.0 1973 8 284.7 1973 9 179.1 1973 10 716.5 1973 11 238.2 1973 12 60.7 1974 1 37.8 1974 2 66.2 1974 3 14.3 1974 4 81.4 1974 5 29.4 1974 6 31.1 1974 7 121.2 1974 8 .2 1974 9 91.1 1974 10 537.7 1974 11 554.1 1974 12 396.0 1975 1 329.1 1975 2 206.4 1975 3 84.9 1975 4 13.1 1975 5 22.2 1975 6 .9 1975 7 113.5 1975 8 308.6 1975 9 967.7 1975 10 45.8 1975 11 164.4 1975 12 106.3 1976 1 37.7 1976 2 .0 1976 3 .0 1976 4 194.2 1976 5 228.0 1976 6 59.2 1976 7 56.8 1976 8 3.3 1976 9 372.3 1976 10 155.4 1976 11 149.2 1976 12 124.0 1977 1 185.9 1977 2 66.5 1977 3 52.4 1977 4 35.0 1977 5 5.0 1977 6 97.1 1977 7 303.9 1977 8 168.2 1977 9 227.0 1977 10 682.8 1977 11 474.1 1977 12 182.5 1978 1 230.1 1978 2 331.0 1978 3 1408.8 1978 4 912.1 1978 5 1220.1 1978 6 1065.0 1978 7 738.1 1978 8 693.9 1978 9 210.0 1978 10 1326.3 1978 11 661.2 1978 12 621.6 1979 1 1211.7 1979 2 1415.8 1979 3 1233.7 1979 4 819.3 1979 5 1145.1 1979 6 1346.1 1979 7 1594.0 1979 8 1109.3 1979 9 1205.6 1979 10 1633.2 1979 11 2163.2 1979 12 1369.6 1980 1 422.0 1980 2 1128.4 1980 3 923.5 1980 4 536.9 1980 5 1303.4 1980 6 573.1 1980 7 495.0 1980 8 626.8 1980 9 916.5 1980 10 1177.8 1980 11 1122.6 1980 12 1382.4 1981 1 981.8 1981 2 590.0 1981 3 1123.6 1981 4 1375.0 1981 5 1871.5 1981 6 1563.1 1981 7 604.7 1981 8 577.8 1981 9 852.8 1981 10 1539.3 1981 11 670.9 1981 12 749.9 1982 1 1342.2 1982 2 523.5 1982 3 1277.6 1982 4 1972.6 1982 5 1288.5 1982 6 549.7 1982 7 1929.7 1982 8 1481.3 1982 9 1190.0 1982 10 792.6 1982 11 667.3 1982 12 399.2 1983 1 915.0 1983 2 569.5 1983 3 133.2 1983 4 36.4 1983 5 62.8 1983 6 368.2 1983 7 360.4 1983 8 222.6 1983 9 98.9 1983 10 82.2 1983 11 670.1 1983 12 49.7 1984 1 81.7 1984 2 1234.4 1984 3 1203.1 1984 4 287.5 1984 5 321.5 1984 6 812.5 1984 7 112.5 1984 8 100.3 1984 9 61.6 1984 10 25.3 1984 11 55.5 1984 12 45.6 1985 1 26.2 1985 2 11.0 1985 3 68.6 1985 4 116.7 1985 5 337.8 1985 6 76.1 1985 7 50.6 1985 8 51.0 1985 9 10.7 1985 10 .5 1985 11 193.7 1985 12 21.2 1986 1 30.7 1986 2 1.0 1986 3 17.2 1986 4 127.4 1986 5 154.5 1986 6 43.9 1986 7 .5 1986 8 92.6 1986 9 77.9 1986 10 23.0 1986 11 283.3 1986 12 75.0 1987 1 5.0 1987 2 14.0 1987 3 10.4 1987 4 99.9 1987 5 63.2 1987 6 315.0 1987 7 72.7 1987 8 67.3 1987 9 92.9 1987 10 45.2 1987 11 333.7 1987 12 56.9 1988 1 11.7 1988 2 126.0 1988 3 425.4 1988 4 404.6 1988 5 651.7 1988 6 123.2 1988 7 519.8 1988 8 741.5 1988 9 1036.9 1988 10 390.2 1988 11 1119.1 1988 12 887.0 1989 1 1663.3 1989 2 1451.5 1989 3 1626.3 1989 4 2520.9 1989 5 743.4 1989 6 849.8 1989 7 1929.7 1989 8 592.1 1989 9 1368.3 1989 10 1259.5 1989 11 865.7 1989 12 1786.6 1990 1 1381.0 1990 2 886.5 1990 3 877.9 1990 4 632.3 1990 5 1012.1 1990 6 854.0 1990 7 574.0 1990 8 1171.5 1990 9 1434.5 1990 10 715.4 1990 11 746.2 1990 12 1932.9 1991 1 1549.0 1991 2 1272.0 1991 3 653.9 1991 4 249.2 1991 5 847.7 1991 6 1450.4 1991 7 1947.8 1991 8 1535.9 1991 9 1119.5 1991 10 425.0 1991 11 653.3 1991 12 373.5 1992 1 834.6 1992 2 796.6 1992 3 1262.7 1992 4 693.5 1992 5 350.0 1992 6 376.1 1992 7 569.5 1992 8 514.8 1992 9 755.1 1992 10 222.6 1992 11 436.3 1992 12 290.8 1993 1 260.1 1993 2 162.5 1993 3 709.0 1993 4 371.5 1993 5 258.3 1993 6 527.3 1993 7 245.2 1993 8 310.3 1993 9 232.4 1993 10 210.5 1993 11 354.2 1993 12 378.9 1994 1 513.0 1994 2 880.0 1994 3 323.8 1994 4 74.7 1994 5 107.9 1994 6 246.4 1994 7 79.9 1994 8 184.7 1994 9 75.1 1994 10 47.0 1994 11 353.7 1994 12 39.7 1995 1 33.0 1995 2 69.0 1995 3 63.2 1995 4 35.5 1995 5 20.8 1995 6 70.5 1995 7 120.1 1995 8 130.5 1995 9 77.9 1995 10 51.5 1995 11 52.3 1995 12 13.5 1996 1 13.1 1996 2 79.2 1996 3 14.5 1996 4 32.7 1996 5 4.1 1996 6 .9 1996 7 79.9 1996 8 3.2 1996 9 21.0 1996 10 .0 1996 11 .5 1996 12 40.6 1997 1 47.4 1997 2 6.5 1997 3 27.5 1997 4 25.2 1997 5 18.5 1997 6 108.7 1997 7 20.3 1997 8 35.2 1997 9 135.8 1997 10 187.4 1997 11 81.7 1997 12 370.3 1998 1 321.1 1998 2 61.0 1998 3 34.8 1998 4 79.8 1998 5 39.3 1998 6 362.1 1998 7 250.6 1998 8 273.2 1998 9 914.7 1998 10 621.0 1998 11 271.1 1998 12 507.6