Year	% (national estimate)
1995	61.97
1997	62.362
1998	61.432
1999	60.889
2000	59.924
2001	59.032
2002	53.084
2003	52.041
2004	51.312
2005	50.068
2006	50.971
2007	51.257
2008	51.354
2009	50.706
2010	51.051
2011	50.227
2012	50.903
2013	50.663
2014	51.138
2015	50.828
2016	50.552
2017	52.232
2018	52.675
2019	52.983
2020	52.29
2021	48.214
2022	48.921
2023	48.595