Year	% (national estimate)
2007	49.1
2008	50.7
2009	48.6
2010	47
2011	44.843
2012	45.906
2013	45.417
2014	48.875
2015	49.435
2016	50.517
2017	52.646
2018	54.481
2019	55.668
2020	50
2021	47.931