Year	% of population
2008	26.7798610949089
2009	23.9037400593468
2010	25.4778114323123
2011	25.4318380825291
2012	25.8122301749873
2013	25.747473635938
2014	27.4657520645665
2015	23.6928912534593
2016	24.5698766884267
2017	22.7346146269212
2018	22.8741927394483
2019	22.0298330518161
2020	21.1639391984771
2021	24.6138849752027