d YEARN MONTHN H2OCONTN  1936 3 16.3 1937 2 8.8 1937 4 19.0 1938 2 5.0 1938 4 27.5 1939 2 6.4 1939 4 10.6 1940 2 5.0 1940 4 6.4 1941 2 15.9 1941 4 19.1 1942 2 7.8 1942 4 12.4 1943 2 16.2 1943 4 11.7 1944 2 4.8 1944 3 8.8 1944 4 7.8 1945 2 2.9 1945 3 6.4 1945 4 11.2 1946 2 16.8 1946 3 19.6 1946 4 21.7 1947 2 5.7 1947 3 6.6 1947 4 6.1 1948 2 1.4 1948 3 2.6 1948 4 5.6 1949 2 6.9 1949 3 12.7 1949 4 17.7 1949 5 0.0 1950 3 12.8 1950 4 15.0 1951 2 8.3 1951 3 12.3 1951 4 9.9 1952 2 27.6 1952 3 26.2 1952 4 30.1 1953 2 20.7 1953 3 18.9 1953 4 22.1 1954 2 15.0 1954 3 19.1 1954 4 18.9 1955 2 8.4 1955 3 9.9 1955 4 6.2 1956 4 30.3 1957 4 7.9 1958 4 20.5 1959 4 16.0 1960 4 7.4 1961 4 14.3 1962 4 21.9 1963 4 6.5 1964 4 10.7 1965 2 12.0 1965 3 12.3 1965 4 8.1 1965 5 3.3 1966 2 16.6 1966 3 18.4 1966 4 18.7 1967 2 12.2 1967 3 13.0 1967 4 14.1 1968 2 12.0 1968 3 10.9 1968 4 9.0 1968 5 1.5 1969 2 22.0 1969 3 28.6 1969 4 27.2 1970 2 8.8 1970 3 8.8 1970 4 5.1 1971 2 15.7 1971 3 14.0 1971 4 20.1 1972 2 14.0 1972 3 14.3 1972 4 4.0 1973 2 10.1 1973 3 12.5 1973 4 15.8 1974 2 12.1 1974 3 15.2 1974 4 19.6 1975 2 5.6 1975 3 18.3 1975 4 29.3 1976 2 3.5 1976 3 4.0 1976 4 7.1 1977 2 3.0 1977 3 1.8 1977 4 3.3 1978 1 4.1 1978 2 12.0 1978 3 16.6 1978 4 11.2 1979 2 4.6 1979 3 10.5 1979 4 9.9 1980 2 7.0 1980 3 8.4 1980 4 9.3 1981 2 3.8 1981 3 3.6 1981 4 2.9 1982 2 6.7 1982 3 7.3 1982 4 9.3 1983 2 17.0 1983 4 37.2 1984 2 6.0 1984 3 12.4 1984 4 10.3 1985 2 11.0 1985 3 14.0 1985 4 14.5 1986 2 10.7 1986 3 14.8 1987 2 9.0 1987 3 9.4 1987 4 11.5 1988 2 10.1 1988 3 7.6 1988 4 1.4 1989 2 9.1 1989 3 8.2 1989 4 11.7 1989 5 0.0 1990 2 36.6 1990 3 7.7 1990 4 4.2 1991 2 1.4 1991 3 1.8 1991 4 9.7 1992 2 5.5 1992 3 8.4 1992 4 2.9 1993 2 19.6 1993 3 23.1 1993 4 16.0 1994 2 5.2 1994 3 10.7 1994 4 5.1 1995 2 17.2 1995 3 11.4 1995 4 16.6 1996 2 11.2 1996 3 10.7 1996 4 8.1 1997 2 5.7 1997 3 6.8 1997 4 2.2