Year	ages 15+
2000	25.2705729164851
2005	20.8022425627332
2010	17.214112638281
2011	16.6564415841968
2012	16.0194385051797
2013	15.4888432998744
2014	14.9264369213672
2015	14.3694847320755
2016	13.9098870308961