Year	% of adults
2004	36.97608695652173
2005	36.848
2006	37.6
2007	38.39818181818181
2008	39.4625
2009	41.023214285714296
2010	43.80357142857143
2011	47.11551724137931
2012	46.57457627118646
2013	50.561290322580646
2014	51.4225806451613
2015	52.13225806451613
2016	54.18387096774194
2017	53.81612903225807
2018	53.75238095238095
2019	53.076190476190476