Year	% of population
2000	82.95
2001	83.5
2002	84.1
2003	84.5
2004	84.7
2005	85
2006	85.2
2007	85.1
2008	85.4
2009	85.5
2010	85.6
2011	85.3
2012	85.2
2013	84.7
2014	84.4
2015	83.8
2016	83.3
2017	82.5
2018	82
2019	81.1
2020	80.1
2021	79
2022	77.8