Year	% (national estimate)
2000	68.05765083086648
2001	69.75150026636315
2002	69.0152682495872
2003	68.87252237964913
2004	68.58396914061974
2005	67.91771885059963
2006	68.18274743182495
2007	68.18938315954419
2008	67.54747685702456
2009	67.08502746751581
2010	66.64935434327172
2011	66.18339208120129
2012	66.03067191985902
2013	65.96165030405764
2014	65.93759691919016
2015	65.79030854067639
2016	65.50093113018482
2017	65.26284303695861
2018	65.27757439104349
2019	64.88853418800709