Year	% (national estimate)
2001	36.200540281863795
2002	37.41992375774397
2003	35.58045314455883
2004	35.626990915605475
2005	35.509379373349276
2006	36.56115492832811
2007	36.74558199056749
2008	35.9954042102199
2009	34.83779013232978
2011	34.049223060692235
2012	33.88529232510963
2013	33.91550227809803
2014	33.348950272400124
2015	33.010209775058435
2016	31.43947550881024
2017	31.183770150358374
2018	31.84045021361654
2019	32.37138599582526
2020	27.27702360106194
2021	31.467879994623996
2022	33.8505574882866
2023	33.98409968280182