Year	% (national estimate)
1990	41.36174168285325
1994	42.89810234552419
1997	43.31752693936983
2008	51.511074471100834
2009	49.08278730961539
2010	47.14310212285419
2011	47.842577075693136
2012	47.97269871089327
2013	46.87393879536961
2014	47.4469183318243
2015	46.59577630710564
2016	48.339847859239825
2019	49.066226109372586