Year	% (national estimate)
2005	42.34
2006	40.4
2007	41.78
2008	44.434
2009	41.198
2010	37.913
2011	35.779
2012	35.491
2013	37.732
2014	41.957
2015	42.478
2016	45.191
2017	46.697
2018	47.553
2019	48.953
2020	49.094
2021	51.526
2022	53.202