Year	% of population
2000	78.684962029243
2001	78.7391928680405
2002	78.7945401018168
2003	78.8510048244629
2004	78.9085911691567
2005	78.1097992602646
2006	77.1528573983775
2007	76.2134616420963
2008	75.2920502593737
2009	74.3884974390929
2010	73.5032170030836
2011	72.6348281309613
2012	71.7835303579543
2013	70.9490706970944
2014	70.1311297445633
2015	69.3299197692829
2016	68.5447968435912
2017	67.7759579025056
2018	67.0062568116343
2019	67.1538021706971
2020	67.3010272697103
2021	67.4476106942439