Year	% of population
2008	3.20093106439349
2009	2.98549575504376
2010	5.31104767470319
2011	4.54285853307945
2012	5.34483841418545
2013	4.78517791261689
2014	4.04843338518948
2015	3.95028249014341
2016	4.83814207093514
2017	4.76037120519195
2018	4.11479944143244
2019	4.38828033108405
2020	4.3604196838826
2021	3.88988185269134