Year	% (national estimate)
2005	28.813
2006	26.581
2007	26.593
2008	26.846
2009	26.582
2010	27.145
2011	26.067
2012	24.454
2013	28.24
2014	28.728
2015	30.485
2016	29.393
2017	31.395
2018	33.95
2019	31.395
2020	31.573
2021	37.489
2022	36.467
2023	28.731
