Year	% (national estimate)
2008	31.367
2009	27.614
2010	24.357
2011	26.145
2012	23.429
2013	23.529
2014	24.177
2015	22.866
2016	27.563
2017	28.823
2018	28.422
2019	30.309
2020	27.941
2021	29.172
2022	31.737
