Year	% of population
2000	98.6
2001	98.6
2002	98.6
2003	98.6
2004	98.6
2005	98.6
2006	98.7
2007	98.7
2008	99.3
2009	98.8
2010	98.9
2011	99
2012	98.8
2013	99.2
2014	99.3
2015	99.4
2016	99.4
2017	99.5
2018	99.6
2019	99.5
2020	99.7
2021	99.8
2022	100