Year	% of population
1994	86.8
1995	88.7
1996	90.4
1997	92
1998	93.2
1999	94.2
2000	94.8
2001	97.3
2002	97.8
2003	98.4
2004	99
2005	99.2
2006	99.4
2007	99.4
2008	99.4
2009	99.5
2010	99.5
2011	99.5
2012	99.5
2013	99.7
2014	99.8
2015	99.9
2016	100
2017	100
2018	99.8
2019	100
2020	99.9
2021	99.9
2022	100