Year	% (national estimate)
1996	76.052
1997	70.081
1998	69.2
1999	78.559
2000	74.131
2001	79.981
2003	74.803
2004	77.63
2007	73.825
2008	71.421
2009	76.95
2010	80.631
2011	81.448
2012	60.734
2013	74.068
2014	73.832
2015	73.088
2016	75.267
2017	76.276
2019	69.578
2020	76.964
2021	73.422