Year	ages 15+
2000	29.6965344948062
2005	27.3326010380849
2010	25.3105765742864
2011	24.8783609372559
2012	24.6569676533468
2013	24.2792453970769
2014	23.9076813722429
2015	23.5266578423104
2016	23.2203798495616