Year	% (national estimate)
2001	41.367
2002	41.095
2003	42.394
2004	40.384
2005	40.569
2007	37.975
2008	37.306
2009	39.86
2010	39.942
2011	41.464
2012	42.799
2013	42.315
2014	42.133
2015	42.496
2016	40.913
2017	40.135
2018	38.756
2019	37.087
2020	34.2
2021	36.452
2022	35.124
2023	36.078