Year	% of population
2000	22.7
2001	30.8
2002	40.4
2003	51.3
2004	61.8
2005	70.9
2006	78.3
2007	83.8
2008	88
2009	91.1
2010	93.4
2011	95
2012	96.3
2013	97.2
2014	97.9
2015	98.4
2016	98.8
2017	99.1
2018	99.3
2019	99.5
2020	99.6
2021	99.7
2022	99.7