YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC D-J-F M-A-M J-J-A S-O-N metANN 1900 999.9 999.9 999.9 999.9 13.2 13.4 11.8 11.9 11.9 15.7 17.5 18.8 999.9 999.9 12.4 15.0 999.90 1901 20.5 20.7 18.7 16.9 14.3 11.6 11.3 12.2 13.9 15.4 17.1 18.5 20.0 16.6 11.7 15.5 15.95 1902 18.8 18.9 19.4 16.6 14.4 12.1 11.3 13.0 13.7 13.4 15.9 17.1 18.7 16.8 12.1 14.3 15.50 1903 20.9 19.9 16.1 14.5 14.1 13.2 11.1 11.9 12.6 14.2 17.1 19.0 19.3 14.9 12.1 14.6 15.23 1904 20.8 19.1 20.8 16.1 13.5 12.6 11.1 12.4 13.1 13.7 17.0 19.3 19.6 16.8 12.0 14.6 15.77 1905 19.0 19.8 17.9 16.9 15.1 12.2 11.3 10.7 12.5 14.4 16.7 20.3 19.4 16.6 11.4 14.5 15.48 1906 20.9 20.4 19.8 17.2 14.8 13.1 10.9 11.8 11.6 15.5 17.1 20.9 20.5 17.3 11.9 14.7 16.12 1907 21.5 21.5 19.8 16.2 13.9 12.8 12.5 13.5 13.4 14.8 16.0 17.7 21.3 16.6 12.9 14.7 16.40 1908 19.3 19.1 17.1 15.8 12.8 10.5 10.7 11.3 11.9 14.4 16.5 19.3 18.7 15.2 10.8 14.3 14.76 1909 20.6 20.5 18.5 15.6 14.0 12.0 11.1 11.5 12.8 14.2 16.0 21.5 20.1 16.0 11.5 14.3 15.51 1910 20.6 22.1 20.3 17.4 13.8 11.8 10.9 12.7 13.0 13.1 16.4 18.4 21.4 17.2 11.8 14.2 16.13 1911 21.9 20.6 18.2 15.7 12.4 11.6 11.0 11.4 12.5 14.6 18.0 18.5 20.3 15.4 11.3 15.0 15.53 1912 21.5 21.7 20.6 17.7 13.9 12.3 11.2 12.5 13.1 14.9 16.6 19.5 20.6 17.4 12.0 14.9 16.21 1913 20.3 21.5 19.1 16.4 13.8 12.8 11.2 11.9 13.7 13.9 16.7 18.4 20.4 16.4 12.0 14.8 15.90 1914 21.2 19.0 18.6 15.0 12.4 12.3 11.2 12.5 13.7 17.3 17.4 20.2 19.5 15.3 12.0 16.1 15.75 1915 23.2 22.5 18.8 17.8 14.9 13.9 12.4 12.5 12.8 15.1 18.2 21.1 22.0 17.2 12.9 15.4 16.86 1916 20.3 20.8 18.6 16.0 14.5 11.3 10.6 11.4 14.4 14.0 17.9 19.5 20.7 16.4 11.1 15.4 15.91 1917 20.6 20.4 18.0 15.8 13.4 12.4 12.4 10.8 12.6 13.8 16.5 18.0 20.2 15.7 11.9 14.3 15.52 1918 22.9 20.6 18.1 18.6 14.7 13.8 11.0 12.1 14.1 14.5 18.8 18.9 20.5 17.1 12.3 15.8 16.43 1919 19.7 19.9 20.8 17.0 14.2 12.2 12.6 12.3 12.7 13.4 17.1 18.6 19.5 17.3 12.4 14.4 15.90 1920 23.2 20.7 19.6 17.3 14.1 12.8 10.6 11.4 14.0 15.3 18.9 19.2 20.8 17.0 11.6 16.1 16.38 1921 21.3 24.2 20.4 17.4 15.0 13.9 13.4 11.9 13.1 14.9 16.0 20.8 21.6 17.6 13.1 14.7 16.73 1922 20.3 21.1 19.9 16.3 12.6 11.8 10.6 11.9 12.2 14.7 17.1 17.6 20.7 16.3 11.4 14.7 15.78 1923 20.0 21.8 20.4 18.2 15.4 11.2 12.1 12.0 12.0 12.8 17.2 19.2 19.8 18.0 11.8 14.0 15.89 1924 19.6 20.5 18.3 17.4 14.3 12.3 12.8 11.0 13.2 13.9 17.1 20.1 19.8 16.7 12.0 14.7 15.80 1925 20.3 20.5 19.4 16.2 13.6 11.9 11.0 11.0 13.4 14.1 18.9 20.7 20.3 16.4 11.3 15.5 15.87 1926 22.7 19.3 19.0 16.0 13.9 12.3 11.8 11.6 13.5 14.8 17.8 18.8 20.9 16.3 11.9 15.4 16.12 1927 19.2 19.3 17.8 18.1 13.8 12.1 11.4 12.7 14.0 14.9 17.3 21.2 19.1 16.6 12.1 15.4 15.78 1928 20.7 19.9 19.0 16.5 13.6 12.6 12.2 13.3 13.0 13.6 18.7 19.0 20.6 16.4 12.7 15.1 16.19 1929 19.2 20.8 18.5 16.0 14.3 11.6 10.9 11.5 12.1 14.1 16.8 19.3 19.7 16.3 11.3 14.3 15.40 1930 20.7 20.4 21.5 17.0 14.9 14.3 12.6 12.7 13.8 14.6 17.2 18.8 20.1 17.8 13.2 15.2 16.58 1931 20.9 18.6 19.6 16.8 12.7 10.7 13.1 12.1 14.0 14.6 17.8 22.1 19.4 16.4 12.0 15.5 15.81 1932 22.4 21.5 18.4 16.5 14.5 11.6 10.8 10.7 12.2 14.5 16.1 19.3 22.0 16.5 11.0 14.3 15.94 1933 22.4 25.6 19.5 18.3 14.8 14.8 11.6 11.1 13.7 15.1 18.1 20.3 22.4 17.5 12.5 15.6 17.03 1934 22.2 23.0 20.6 17.3 16.2 13.1 11.9 12.4 13.7 13.5 16.1 18.9 21.8 18.0 12.5 14.4 16.69 1935 21.2 20.6 18.7 16.5 14.6 11.9 11.7 11.0 13.0 13.4 16.1 19.3 20.2 16.6 11.5 14.2 15.63 1936 21.1 20.4 20.6 16.9 13.7 12.0 11.2 13.1 14.0 15.0 18.6 20.9 20.3 17.1 12.1 15.9 16.33 1937 20.9 21.6 19.7 18.8 15.3 12.9 11.9 12.1 13.0 15.4 18.3 18.3 21.1 17.9 12.3 15.6 16.73 1938 20.5 19.8 18.9 16.5 14.1 12.2 11.7 12.7 14.0 14.9 17.4 19.1 19.5 16.5 12.2 15.4 15.92 1939 19.5 20.9 19.0 17.1 15.0 12.3 11.9 12.5 13.6 14.9 17.4 20.2 19.8 17.0 12.2 15.3 16.10 1940 20.5 22.2 19.5 15.5 13.7 13.7 12.4 12.2 13.5 15.0 18.0 18.4 21.0 16.2 12.8 15.5 16.37 1941 22.0 21.7 18.5 15.9 14.5 14.4 13.1 13.4 13.0 14.4 17.5 20.9 20.7 16.3 13.6 15.0 16.40 1942 20.6 20.6 18.8 17.3 15.0 13.1 12.0 12.9 13.1 13.7 17.3 20.5 20.7 17.0 12.7 14.7 16.28 1943 19.7 20.1 19.5 16.5 13.8 13.7 10.8 11.1 13.3 14.0 17.8 19.4 20.1 16.6 11.9 15.0 15.90 1944 21.3 20.8 18.6 16.6 13.1 13.7 12.4 12.4 13.2 16.1 18.0 18.1 20.5 16.1 12.8 15.8 16.30 1945 19.3 21.4 19.4 18.1 15.6 13.5 11.6 12.6 13.0 14.8 17.6 18.0 19.6 17.7 12.6 15.1 16.25 1946 19.0 19.5 18.2 16.8 14.7 11.9 11.8 11.7 13.9 15.3 16.8 18.9 18.8 16.6 11.8 15.3 15.63 1947 19.7 21.3 19.8 16.9 14.1 13.4 12.0 11.9 12.6 14.9 16.7 18.0 20.0 16.9 12.4 14.7 16.02 1948 20.9 21.5 21.8 16.6 14.5 13.2 12.4 13.4 13.6 16.0 17.0 18.2 20.1 17.6 13.0 15.5 16.58 1949 22.4 22.0 19.4 17.9 14.0 13.6 13.8 13.7 13.8 14.7 18.3 20.6 20.9 17.1 13.7 15.6 16.82 1950 22.2 21.6 20.4 18.0 15.1 13.2 12.7 12.1 12.2 14.0 16.1 18.3 21.5 17.8 12.7 14.1 16.52 1951 20.3 21.2 19.8 16.1 13.3 12.3 11.4 10.9 13.9 15.1 17.8 19.2 19.9 16.4 11.5 15.6 15.87 1952 21.0 22.4 20.0 17.6 13.9 13.9 11.0 12.2 13.4 14.0 15.7 17.8 20.9 17.2 12.4 14.4 16.19 1953 21.1 20.8 20.6 17.4 14.9 12.1 12.7 11.8 14.1 14.3 16.8 18.4 19.9 17.6 12.2 15.1 16.20 1954 22.9 21.9 19.1 15.4 13.8 12.3 12.3 12.4 14.1 16.2 15.9 19.6 21.1 16.1 12.3 15.4 16.23 1955 22.4 23.0 20.8 17.2 14.0 11.8 12.1 12.9 13.4 14.4 17.1 19.5 21.7 17.3 12.3 15.0 16.56 1956 23.3 22.2 20.4 15.7 13.8 11.5 11.6 11.4 14.0 14.7 17.7 19.5 21.7 16.6 11.5 15.5 16.32 1957 22.3 21.6 19.7 17.3 15.3 15.0 12.0 13.2 13.7 16.5 18.8 19.9 21.1 17.4 13.4 16.3 17.08 1958 23.0 21.7 19.9 16.7 15.5 13.2 11.8 12.1 12.8 14.5 17.7 21.2 21.5 17.4 12.4 15.0 16.57 1959 21.2 22.6 20.9 16.2 14.8 13.8 13.2 13.3 13.4 15.2 16.7 999.9 21.7 17.3 13.4 15.1 16.88 1960 19.2 21.2 17.8 14.6 12.8 11.8 11.1 11.7 12.6 15.3 16.8 20.5 19.6 15.1 11.5 14.9 15.29 1961 22.7 23.1 21.1 16.0 15.3 13.5 11.6 12.5 14.4 14.9 17.4 20.3 22.1 17.5 12.5 15.6 16.92 1962 24.2 21.9 18.4 18.4 16.3 14.6 12.4 13.5 13.6 13.7 17.3 21.1 22.1 17.7 13.5 14.9 17.05 1963 21.7 22.0 21.4 17.3 16.0 14.0 12.5 13.3 14.8 16.6 18.4 21.2 21.6 18.2 13.3 16.6 17.43 1964 21.2 21.4 20.1 16.3 14.0 15.0 13.3 12.1 13.1 13.3 16.4 19.0 21.3 16.8 13.5 14.3 16.45 1965 22.2 21.0 19.8 17.7 14.2 13.3 12.0 12.2 13.8 16.1 17.4 21.1 20.7 17.2 12.5 15.8 16.56 1966 22.1 21.1 19.4 17.3 14.3 12.5 12.5 11.7 13.0 14.7 18.1 19.9 21.4 17.0 12.2 15.3 16.48 1967 21.6 23.4 19.6 17.9 15.0 14.6 12.1 11.8 13.8 16.6 17.9 20.7 21.6 17.5 12.8 16.1 17.02 1968 21.3 21.2 17.9 15.5 12.9 13.0 12.1 11.6 12.5 14.4 16.3 19.4 21.1 15.4 12.2 14.4 15.78 1969 20.4 21.2 19.8 16.7 14.7 13.6 12.3 11.8 11.7 17.2 18.0 20.5 20.3 17.1 12.6 15.6 16.40 1970 21.4 23.4 20.7 16.2 14.3 13.7 13.0 12.2 13.4 14.6 17.0 20.7 21.8 17.1 13.0 15.0 16.70 1971 21.5 21.8 20.4 16.1 13.9 12.8 12.4 11.7 12.7 13.9 15.3 18.6 21.3 16.8 12.3 14.0 16.10 1972 22.5 24.1 20.2 16.5 15.8 12.9 12.4 12.6 14.2 15.1 19.3 22.2 21.7 17.5 12.6 16.2 17.02 1973 999.9 999.9 999.9 17.2 14.9 11.3 13.0 11.9 13.1 15.1 18.2 19.5 999.9 17.4 12.1 15.5 16.44 1974 22.8 21.0 999.9 16.7 14.1 999.9 12.5 13.2 14.3 14.6 16.5 20.0 21.1 16.7 13.1 15.1 16.51 1975 21.2 25.1 19.1 16.2 14.4 13.4 12.7 12.2 12.7 15.8 17.5 999.9 22.1 16.6 12.8 15.3 16.69