Year	% of population
2000	97.8
2001	98
2002	98.1
2003	98.1
2004	98.1
2005	98
2006	97.8
2007	97.5
2008	97.2
2009	96.9
2010	96.5
2011	95.9
2012	95.2
2013	94.5
2014	93.5
2015	92.7
2016	91.6
2017	90.7
2018	89.5
2019	88.2
2020	86.9
2021	86
2022	84.1