Year	% of population
2000	26.2
2001	29.9
2002	34.3
2003	38.2
2004	42.6
2005	47
2006	51
2007	55.4
2008	58.9
2009	62.3
2010	65.7
2011	68.5
2012	71.2
2013	73.8
2014	76.2
2015	78.1
2016	80
2017	81.9
2018	83.3
2019	84.7
2020	86
2021	86.8
2022	88