Year	% of population
2004	14.6593879517688
2005	14.6701272329231
2006	14.6808666814643
2007	14.6919318138128
2008	14.7026717765664
2009	15.5800325958026
2010	16.4615105596223
2011	17.3461884423527
2012	18.2334009397778
2013	19.1219353181338
2014	20.0108725509057
2015	20.8994976557855
2016	21.7868386731571
2017	22.671923304196
2018	23.5539352133861
2019	24.4317139521309
2020	25.304527604495
2021	26.1711993914632
2022	26.200473195598