Year	% of population
2000	78.7187250849416
2001	79.6100248763914
2002	80.5047783886163
2003	81.4029856216164
2004	82.3046465753912
2005	83.2097612499412
2006	84.118329645266
2007	85.0303517613659
2008	85.9409316911414
2009	86.8396064388542
2010	87.7416363162664
2011	88.6470213233783
2012	89.4401735145831
2013	89.8113017976918
2014	89.9176799999318
2015	89.9176799999318
2016	89.9176799999318
2017	89.9176799999318