Year	% of population
2001	8.301274533206854
2002	8.284010442112503
2003	8.27899741604559
2004	8.260066988530523
2005	8.122382022767498
2006	7.9923987816174975
2007	7.835416332274661
2008	7.680903346153338
2009	7.56732328270078
2010	7.76210181165171
2011	7.8601304947998365
2012	8.02231073250337
2013	7.866434117663803
2014	8.195651338475413
2015	8.713896715117356
2016	9.210207885672846
2017	9.592598248349653
2018	9.56581262606427
2019	9.562801948840853
2020	9.375321620851514
2021	9.619412294656042