Year	% (national estimate)
2002	41.88
2003	41.5
2004	39.87
2005	41.07
2006	41.64
2007	44.02
2009	71.58
2010	71.2
2011	70.52
2012	70.79
2013	70.78
2014	71.39
2015	71.62
2016	72.03
2017	72.28
2019	76.62
2020	70.26