Year	Women	Men
1998	25	26.7
1997	25	26.8
1996	24.8	27.1
1995	24.5	26.9
1994	24.5	26.7
1993	24.5	26.5
1992	24.4	26.5
1991	24.1	26.3
1990	23.9	26.1
1989	23.8	26.2
1988	23.6	25.9
1987	23.6	25.8
1986	23.1	25.7
1985	23.3	25.5
1984	23	25.4
1983	22.8	25.4
1982	22.5	25.2
1981	22.3	24.8
1980	22	24.7
1979	22.1	24.4
1978	21.8	24.2
1977	21.6	24
1976	21.3	23.8
1975	21.1	23.5
1974	21.1	23.1
1973	21	23.2
1972	20.9	23.3
1971	20.9	23.1
1970	20.8	23.2
1969	20.8	23.2
1968	20.8	23.1
1967	20.6	23.1
1966	20.5	22.8
1965	20.6	22.8
1964	20.5	23.1
1963	20.5	22.8
1962	20.3	22.7
1961	20.3	22.8
1960	20.3	22.8
1959	20.2	22.5
1958	20.2	22.6
1957	20.3	22.6
1956	20.1	22.5
1955	20.2	22.6
1954	20.3	23
1953	20.2	22.8
1952	20.2	23
1951	20.4	22.9
1950	20.3	22.8
1949	20.3	22.7
1948	20.4	23.3
1947	20.5	23.7
1940	21.5	24.3
1930	21.3	24.3
1920	21.2	24.6
1910	21.6	25.1
1900	21.9	25.9
1890	22	26.1