Year	% (national estimate)
2007	18.936
2008	18.211
2009	19.042
2010	22.7
2011	23.555
2012	24.595
2013	25.088
2014	23.674
2015	26.858
2016	22.065
2017	21.71
2018	29.963
2019	32.897
2020	28.83
2021	26.71
2022	29.422
