Year	% of population
1999	21.860005320690565
2000	17.86752540538479
2001	18.72379538465058
2002	19.4195844136975
2003	20.89011312239319
2004	21.95034278222892
2005	21.682000944747188
2006	24.324180609792062
2007	25.878876028225253
2008	25.853392395013447
2009	27.059904043463938
2010	28.69998773316276
2011	29.195886294885714
2012	31.93153861949031
2013	32.91619533561409
2014	35.39899997680923
2015	35.48391027408725
2016	40.63292858745081
2017	41.51839056218434
2018	44.01328171927877
2019	45.052245889809434
2020	46.36404140935569
2021	48.05095040798872
2022	48.655393392095554