Year	% (national estimate)
1991	32.21
1992	34.64
1995	34.66
1998	42.12
1999	46.24
2001	38.34
2002	35.9
2003	37.4
2004	36.46
2005	39.548
2006	37.709
2007	37.098
2008	38.725
2009	39.941
2010	41.013
2011	37.904
2012	37.057
2013	40.97
2014	42.629
2015	43.358
2016	42.748
2017	43.096
2018	47.446
2019	44.359
2020	41.793
2021	45.218
2022	44.37
2023	37.215