Year	% (national estimate)
1990	66.176
1991	60.261
1992	50.286
1993	40.777
1994	40
1995	34.978
1996	33.868
1997	32.695
1998	35.108
1999	35.778
2000	36.659
2001	45.551
2002	43.685
2003	42.713
2004	39.187
2005	38.215
2006	40.173
2007	42.047
2008	42.242
2009	37.647
2010	38.525
2011	40.789
2012	38.822
2013	40.538
2014	41.584
2015	42.414
2016	43.068
2017	43.917
2018	43.027
2019	42.866
2020	39.158
2021	39.843
2022	45.588
2023	44.764