Year	% (national estimate)
2001	30.918
2002	29.252
2003	29.276
2004	26.504
2005	28.594
2006	30.02
2007	33.19
2008	32.62
2009	28.16
2010	27.19
2011	24.009
2012	28.04
2013	29.607
2014	26.682
2015	27.323
2016	23.214
2017	24.347
2018	24.114
2019	24.25
2020	18.65
2021	21.103
2022	22.889
2023	23.11