Year	% (national estimate)
1998	44.677
1999	43.243
2000	42.46
2001	43.958
2002	44.833
2003	44.739
2004	44.52
2005	45.634
2006	48.711
2007	50.159
2008	51.11
2009	46.821
2010	45.128
2011	45.742
2012	46.758
2013	48.016
2014	48.175
2015	49.443
2016	50.367
2017	50.946
2018	52.226
2019	52.66
2020	52.068
2021	50.77
2022	52.546
2023	52.697