Year	% of population
2000	90.9479272603879
2001	90.8413592153922
2002	90.0056399286359
2003	89.171600346343
2004	88.3392638096421
2005	87.5090844921955
2006	86.6815099521752
2007	85.8569961968811
2008	85.0359214715664
2009	84.2187523114491
2010	83.405978062016
2011	82.5978775221597
2012	81.7949137164735
2013	80.9975676784484
2014	80.2060315486897
2015	80.1319987781875
2016	80.1488513169666
2017	80.1675169934689
2018	80.1879872186634
2019	80.2105014769868