Year	% of population
1992	70.1
1993	64.7489929199219
1994	66.0529327392578
1995	67.3548355102539
1996	67
1997	69.16024
1998	72.072063
1999	74.078523
2000	72.5
2001	72.1
2002	74.4
2003	74.4
2004	75.7
2005	77.2
2006	80.2
2007	82
2008	84.7
2009	86.4
2010	88.1
2011	89.7
2012	91.1
2013	92.1
2014	92.9
2015	93.9
2016	94.2
2017	94.8
2018	95.2
2019	95.6
2020	96.2
2021	95.6
2022	96.2