Year	% of population
2008	38.6507647494786
2009	38.460540263255
2010	38.2726476882523
2011	38.0875826989662
2012	37.9051805422339
2013	39.8238378058417
2014	41.8308937557863
2015	43.9211875070312
2016	46.0893713692222
2017	48.3302714189223
2018	50.6388701682328
2019	53.0103104075633
2020	55.4399006783177
2021	57.9233049483653
2022	58.0579084027812