Year	% of women ages 15-49
1970	10
1978	11.2
1981	17
1986	23
1992	32.8
1996	41.3
2000	50.5
2005	47.6
2006	47.6
2008	49.1
2009	50
2010	50.6
2011	51.2
2012	51.9
2013	51.3
2014	52.2
2015	53.3
2016	54.3
2017	54.5