Year	% of population
2000	57.4
2001	58.5
2002	59.7
2003	60.6
2004	61.6
2005	62.9
2006	63.5
2007	64.7
2008	65.5
2009	66.4
2010	67.4
2011	68.2
2012	69.45
2013	70.3
2014	71.6
2015	72.9
2016	74
2017	75.8
2018	77.1
2019	78.7
2020	80.4
2021	81.5
2022	82.9