Year	% of population
2006	24.1831523508023
2007	24.3235850909917
2008	24.4650296476769
2009	24.6064754152115
2010	24.7484995322349
2011	24.4954546767111
2012	24.2375041116897
2013	23.9740829703845
2014	23.7056141466069
2015	23.431821242378
2016	23.151039398225
2017	22.8627466112954
2018	22.5672157772654
2019	22.2645912021566
2020	22.3730440528861
2021	22.4790750194289
2022	22.5826849661963