Year	% of married women ages 15-49
1970	13.5
1971	17.3
1972	22.5
1973	28.4
1974	34.4
1975	40.6
1976	45.2
1977	48.4
1978	50.2
1979	53.7
1980	54.6
1981	54.7
1982	58.2
1983	64.2
1984	66.3
1985	66.2
1986	65.7
1987	69.3
1988	73.2
1997	83.3
2001	86.2
2006	84
2017	80.5