Year	% of population
2000	20.4
2001	26.9
2002	25.9
2003	28.7
2004	31.4
2005	34.2
2006	35.2
2007	39.8
2008	42.6
2009	38.6
2010	45.6
2011	51.2
2012	54.3
2013	57.5
2014	65
2015	64.1
2016	63.4
2017	73.5
2018	74
2019	77
2020	80
2021	82.9
2022	82.3