"Year"	"SeaLevel"
1923	4.03
1924	3.83
1925	3.65
1926	3.88
1927	4.01
1928	4.08
1929	4.18
1930	3.8
1931	4.36
1932	3.96
1933	3.98
1934	4.69
1935	3.85
1936	3.96
1937	3.85
1938	3.93
1939	3.75
1940	3.63
1941	3.57
1942	4.25
1943	3.97
1944	4.05
1945	4.24
1946	4.22
1947	3.73
1948	4.37
1949	4.06
1950	3.71
1951	3.96
1952	4.06
1953	4.55
1954	3.79
1955	3.89
1956	4.11
1957	3.85
1958	3.86
1959	3.86
1960	4.21
1961	4.01
1962	4.11
1963	4.24
1964	3.96
1965	4.21
1966	3.74
1967	3.85
1968	3.88
1969	3.66
1970	4.11
1971	3.71
1972	4.18
1973	3.9
1974	3.78
1975	3.91
1976	3.72
1977	4
1978	3.66
1979	3.62
1980	4.33
1981	4.55
1982	3.75
1983	4.08
1984	3.9
1985	3.88
1986	3.94
1987	4.33