Year	% (national estimate)
1991	63.903330920407555
1992	64.23864120300159
1993	65.22995818801937
1994	66.1378367133618
1995	67.04001288289284
1996	67.77612208829602
1997	68.44618488803854
1998	69.27974269250316
1999	70.09002549786081
2000	70.93301356253939
2001	71.28668435550571
2002	72.15353738816555
2003	73.22139042620972
2004	73.84532715449879
2005	74.69020672901864
2006	75.5614141010396
2007	76.38196162992422
2008	76.80989805576641
2009	78.03284225685996
2010	78.32103333277036
2011	79.34917764888604
2012	79.86749567530576
2013	80.4038223211234
2014	80.91479902530584
2015	81.0846497684337
2016	81.53705232463562
2017	81.7644123878241
2018	81.8590938254809
2019	82.3688760214931
2020	82.39017471825672
2021	83.1793363717747
2022	83.51996683174018
2023	83.2362435664295