Year	% (national estimate)
2009	25.001525402495528
2010	22.799573758182266
2011	22.794829884669713
2012	22.005325272522747
2013	21.775564648458708
2014	21.890627011029462
2015	21.509962789117367
2016	24.685702790986767
2019	26.995779369868885