Year	% (national estimate)
2006	30.08
2007	27.93
2008	27.178
2009	24.456
2010	21.948
2011	20.712
2012	21.847
2013	22.743
2014	21.28
2015	22.635
2016	23.447
2017	24.07
2018	23.314
2019	22.678
2020	21.095
2021	25.68
2022	25.832