Year	% (national estimate)
1983	39.276
1985	39.567
1987	48.077
1988	48.021
1989	49.31
1990	52.15
1991	52.918
1992	55.913
1993	54.027
1994	54.251
1995	53.944
1996	53.858
1997	55.417
1998	58.899
1999	62.503
2000	66.732
2001	69.162
2002	69.218
2003	68.335
2004	65.934
2005	59.145
2006	59.602
2007	62.152
2008	63.769
2009	63.33
2010	61.652
2011	62.625
2012	62.516
2013	61.019
2014	58.848
2015	61.661
2016	62.109
2017	63.584
2018	65.155
2019	65.965
2020	63.561
2021	74.07
2022	75.319
2023	76.178