Year SAT SLP 1875 -1.0 0.4 1876 -0.8 0.1 1877 -1.1 -1.5 1878 0.1 1.4 1879 -0.7 -0.2 1880 -1.0 0.6 1881 -1.4 -0.3 1882 -0.9 -0.5 1883 0.3 -1.2 1884 -0.7 -0.9 1885 -1.1 -0.0 1886 -0.8 -0.5 1887 -1.0 -0.3 1888 -1.5 1.2 1889 0.2 -0.0 1890 0.2 -1.6 1891 -0.6 -0.2 1892 -1.4 1.1 1893 -1.2 -0.9 1894 -0.2 -2.1 1895 -0.4 0.5 1896 -0.6 0.1 1897 -0.2 0.4 1898 -0.9 -1.4 1899 -1.4 -0.3 1900 -0.7 -0.5 1900 -0.7 -0.5 1901 0.0 0.1 1902 -1.4 0.2 1903 -0.4 -2.5 1904 -0.5 -1.6 1905 -0.1 -1.7 1906 -0.5 -1.2 1907 -0.5 -0.8 1908 -0.3 -0.8 1909 -0.6 -0.1 1910 -0.4 0.1 1911 0.0 -1.3 1912 -0.5 -0.7 1913 -0.2 -2.6 1914 -0.3 -3.0 1915 -0.9 1.3 1916 -0.4 -0.5 1917 -1.0 -0.0 1918 -0.7 -0.5 1919 -0.7 0.1 1920 0.5 -1.6 1921 -0.0 -2.5 1922 0.0 -0.9 1923 0.3 -2.4 1924 0.6 -0.7 1925 0.0 -1.7 1926 0.2 -0.9 1927 -0.0 -0.0 1928 0.6 -1.8 1929 0.3 -0.2 1930 0.6 -0.9 1931 0.5 -0.8 1932 0.5 -1.3 1933 -0.1 1.0 1934 1.2 -1.4 1935 0.7 -0.1 1936 0.5 0.3 1937 1.5 0.1 1938 1.7 -2.1 1939 0.6 -1.2 1940 0.7 -0.1 1941 -0.2 0.4 1942 0.3 0.4 1943 1.3 -1.9 1944 1.1 -0.7 1945 0.6 -0.1 1946 0.1 -0.6 1947 0.8 1.0 1948 0.2 -2.2 1949 0.3 -1.2 1950 0.5 -0.5 1951 0.2 -0.0 1952 0.3 1.2 1953 1.0 -0.6 1954 1.1 -0.6 1955 -0.4 0.3 1956 -0.1 1.0 1957 0.1 0.2 1958 -0.3 1.3 1959 0.7 -0.2 1960 0.4 1.8 1961 0.0 -1.1 1962 0.3 -0.5 1963 -0.3 -0.6 1964 -0.6 -0.9 1965 -0.4 0.2 1966 -0.9 1.2 1967 0.4 -2.5 1968 -0.4 0.6 1969 -0.2 1.5 1970 -0.2 0.6 1971 -0.4 -0.4 1972 0.0 0.2 1973 -0.1 -1.5 1974 0.1 0.5 1975 0.1 -2.0 1976 -0.2 -0.5 1977 0.2 0.6 1978 -0.4 -0.7 1979 -0.6 0.3 1980 0.2 1.1 1981 0.8 -0.6 1982 -0.2 -1.0 1983 0.0 -1.2 1984 0.3 0.5 1985 0.1 1.4 1986 -0.1 -1.2 1987 -0.6 0.5 1988 0.3 -1.4 1989 0.4 -3.1 1990 0.5 -3.2 1991 0.8 -1.2 1992 -0.3 -2.2 1993 0.4 -1.2 1994 0.1 -1.7 1995 1.3 -0.9 1996 1.1 1.3 1997 0.6 -1.3 1998 0.6 -0.4 1999 0.1 -0.7 2000 1.5 9999.9