Year	% (national estimate)
2001	38.473
2002	37.96
2003	38.132
2004	36.505
2005	39.392
2006	39.719
2007	41.465
2008	41.794
2009	40.465
2010	40.382
2011	40.684
2012	45.617
2013	46.022
2014	45.708
2015	44.64
2016	41.106
2017	41.202
2018	42.865
2019	45.088
2020	38.116
2021	39.948
2022	42.454
2023	39.366