Year	% (national estimate)
2001	44.476
2002	42.738
2003	43.2
2004	40.856
2005	41.586
2006	42.602
2007	45.9
2008	43.691
2009	38.884
2010	37.067
2011	34.063
2012	37.398
2013	37.583
2014	36.691
2015	35.657
2016	33.554
2017	33.917
2018	34.27
2019	31.24
2020	26.317
2021	27.784
2022	29.91
2023	28.738