Year	% (national estimate)
1998	52.82
2000	53.7
2003	39.168
2004	47.32
2005	45.54
2006	36.519
2007	36.5
2008	33.614
2009	31.955
2010	31.823
2011	32.597
2012	38.331
2013	31.815
2014	30.605
2015	29.329
2016	27.91
2017	26.926
2018	28.893
2019	34.863
2020	33.376
2021	28.381
2022	30.413