Year	% of population
2000	78
2001	79.1
2002	79.8
2003	80.8
2004	81.1
2005	82
2006	82.8
2007	83.3
2008	83.9
2009	84.9
2010	85.6
2011	86.5
2012	87.1
2013	87.9
2014	88.8
2015	89.4
2016	90
2017	90.7
2018	91.4
2019	91.9
2020	92.6
2021	93.1
2022	93.6