Year	% of population
2000	14.165457399302614
2001	14.222452536697439
2002	14.561134890777952
2003	14.910424433450508
2004	15.207722518557132
2005	15.574836065926924
2006	15.951631985907182
2007	16.33695559175343
2008	16.729088424948433
2009	17.12902885058511
2010	17.505866346933132
2011	17.889731369315786
2012	18.280156118701516
2013	18.67507642967918
2014	19.072876156695607
2015	19.474011276902157
2016	19.881027702704866
2017	20.2949608306284
2018	20.714613761002497
2019	21.139216373338453
2020	21.570303175909164
2021	22.043404258465234
2022	22.517989392787182