Year	% of women ages 15-49
1977	36
1978	23
1989	48.9
1991	49
1992	64.6
1993	67.8
1994	70
1995	72.8
1996	73.7
1997	72.9
2000	73.8
2002	73.3
2005	78.9
2010	77.4