Year	% (national estimate)
2000	20.4
2001	20.5
2002	19.3
2003	19.4
2004	20.3
2005	18.9
2006	19.3
2007	19.9
2008	20.2
2011	17.7
2012	17.2
2017	18.874
2018	16.129
2019	16.103
2020	14.141
2021	13.393
2022	13.957