YEARS,NGDC (THDWD) 1890 971.84 1891 1092 1892 1119 1893 1030 1894 917 1895 820 1896 971 1897 934 1898 895 1899 927 1900 1077 1901 820 1902 841 1903 1244 1904 1157 1905 1092 1906 1040 1907 1054 1908 1025 1909 1076 1910 966 1911 806 1912 959 1913 839 1914 816 1915 1001 1916 1066 1917 901 1918 769 1919 1121 1920 962 1921 812 1922 953 1923 1020 1924 1002 1925 694 1926 856 1927 1023 1928 1007 1929 1072 1930 892 1931 872 1932 1075 1933 1028 1934 908 1935 1079 1936 820 1937 951 1938 982 1939 996 1940 996 1941 896 1942 1073 1943 1149 1944 1065 1945 1381 1946 1267 1947 1234 1948 1029 1949 1107 1950 1292 1951 1133 1952 866 1953 980 1954 819 1955 883 1956 805 1957 1019 1958 1032 1959 1169 1960 956 1961 1094 1962 1081 1963 884 1964 977 1965 1252 1966 971 1967 921 1968 1057 1969 985 1970 1045 1971 936 1972 1037 1973 1110 1974 1073 1975 1150 1976 870 1977 991 1978 894 1979 1019 1980 1041 1981 1097 1982 1283 1983 750 1984 900 1985 1206 1986 1523 1987 1360 1988 1360 1989 1360 1990 1120.65