Year	% of population
2000	64.8
2001	64.9
2002	64.9
2003	64.9
2004	64.9
2005	65
2006	65.1
2007	65.1
2008	65.2
2009	65.4
2010	66.1
2011	66.1
2012	65.7
2013	65.9
2014	66
2015	66.1
2016	66.2
2017	66.4
2018	66.5
2019	66.6
2020	66.7
2021	66.8
2022	67