Year	% of population
2000	44.2
2001	46.2
2002	47.9
2003	49.3
2004	51
2005	52.1
2006	53.4
2007	54.8
2008	56.3
2009	57.3
2010	58.4
2011	59.4
2012	60.1
2013	60.5
2014	61.4
2015	61.8
2016	62.5
2017	63
2018	63.7
2019	64.4
2020	64.8
2021	65.4
2022	66