Year	% of population
2000	88.5
2001	89.7
2002	90.5
2003	91
2004	91.8
2005	92.3
2006	92.7
2007	93.1
2008	93.4
2009	93.6
2010	94
2011	93.95
2012	94
2013	94.2
2014	94.2
2015	94.3
2016	94.4
2017	94.4
2018	94.5
2019	94.4
2020	94.4
2021	94.5
2022	94.5