Year	% (national estimate)
1989	80.62
1996	70.7
1997	66.9
1998	64.2
1999	61.7
2000	57.2
2001	62
2002	59.2
2003	56.9
2004	55.4
2007	54.819
2009	57.491
2010	55.394
2011	52.271
2012	51.242
2013	53.643
2014	54.135
2015	55.064
2016	53.194
2017	52.848
2018	51.7
2019	54.208
2020	49.98
2021	43.319
2022	41.941