Year	% (national estimate)
2000	66.01
2001	67.162
2002	66.274
2003	66.103
2004	65.572
2005	64.006
2006	63.983
2007	63.763
2008	63.131
2009	62.303
2010	62.506
2011	63.064
2012	62.539
2013	63.063
2014	63.569
2015	64.204
2016	65.134
2017	66.122
2018	67.518
2019	68.725
2020	67.966
2021	68.963
2022	69.489
2023	70.815