Year	% (national estimate)
2005	26.483
2006	25.22
2007	24.357
2008	22.329
2009	22.198
2010	20.794
2011	19.842
2012	20.387
2013	19.635
2014	18.366
2015	18.437
2016	18.72
2017	19.815
2018	19.654
2019	19.335
2020	17.193
2021	16.829
2022	17.519