Year	% of population
2000	64.85
2001	69.8
2002	74.4
2003	78.6
2004	82.5
2005	86
2006	88.5
2007	90.8
2008	92.7
2009	94.2
2010	95.3
2011	96.3
2012	97.1
2013	97.7
2014	98.2
2015	98.5
2016	98.8
2017	99
2018	99.1
2019	99.3
2020	99.3
2021	99.4
2022	99.4