Year	% (national estimate)
2005	32.91
2006	32.02
2007	33.81
2008	36.457
2009	33.976
2010	31.132
2011	28.988
2012	28.728
2013	30.803
2014	34.896
2015	35.31
2016	38.128
2017	39.684
2018	40.293
2019	41.88
2020	42.132
2021	44.279
2022	46.392