Year	% (national estimate)
1996	69.299
1997	63.145
1998	53.31
1999	69.968
2000	64.361
2001	74.387
2003	76.606
2007	76.021
2008	73.341
2009	75.892
2010	78.237
2011	78.326
2012	60.68
2013	71.343
2014	71.259
2015	71.337
2016	72.12
2017	71.348
2019	58.684
2020	70.784
2021	66.588