Year	% of population
2001	7.5820568336259395
2002	7.489671873601894
2003	7.285424746241327
2004	6.816765476614515
2005	6.341377218128154
2006	5.854031342892858
2007	5.5486638367280685
2008	5.374196253582564
2009	4.779427222830355
2010	4.17149117998198
2011	3.540889046133017
2012	3.4316275672401093
2013	3.372697398516083
2014	3.288209054798847
2015	3.2001423208149404
2016	3.1209557141047175
2017	3.049654378274692
2018	3.01995267734649
2019	3.1432846007078696
2020	3.219364964578737
2021	3.347923822567388