Year	ages 15+
2000	25.7867117440103
2005	21.3028257480723
2010	17.6847868832708
2011	17.1176222929591
2012	16.4782088089057
2013	15.9387835555075
2014	15.3747119428604
2015	14.8200905315722
2016	14.3490746713373