Year	% of population
2000	63.2
2001	64.4
2002	65.2
2003	66.4
2004	67.4
2005	68.8
2006	70.1
2007	71.6
2008	72.9
2009	74.4
2010	75.8
2011	77.2
2012	78.6
2013	79.9
2014	81.2
2015	82.35
2016	83.5
2017	84.6
2018	85.6
2019	86.6
2020	87.4
2021	88.3
2022	89.1