Year	% (national estimate)
2007	20.2
2008	23.4
2010	13.596
2011	13.097
2012	13.479
2013	13.526
2014	18.754
2015	18.84
2016	20.986
2017	21.314
2018	23.187
2019	27.336
2020	19.76
2021	18.741
