Year	% of population
2000	15.16144105706008
2001	15.355469086877982
2002	15.779223862098375
2003	16.186819819147214
2004	16.53224100067496
2005	16.946924828515833
2006	17.360268985671816
2007	17.75497329079825
2008	18.163025193092853
2009	18.534380477796468
2010	18.891780210003454
2011	19.238353096829467
2012	19.576554106486867
2013	19.913081054193647
2014	20.334360012761756
2015	20.76520729023961
2016	21.220214943606297
2017	21.676543873132374
2018	22.133070894424222
2019	22.58597552414488
2020	23.045436234474284
2021	23.46744810349013
2022	23.704040916227562