Year	% of population
2000	8.23705402204924
2001	8.17640727466428
2002	8.24689457700977
2003	8.3128758688065
2004	8.37438179722863
2005	8.43144479909657
2006	8.48409498582953
2007	8.53220123150322
2008	8.57544356436169
2009	8.61380522716451
2010	8.64709396781618
2011	8.67564498260116
2012	8.69926888881621
2013	8.71795194394762
2014	8.73187467880252
2015	8.74103936805901
2016	8.74544629460402
2017	8.74509367563147
2018	8.64698680140397
2019	8.54888068056014
2020	8.45098894932863
2021	8.35352778803158