Year	% of population
2001	15.232867617522704
2002	15.252354672136404
2003	15.140189717640395
2004	14.748843097254278
2005	14.1003945441104
2006	13.143348457021073
2007	12.170270243627847
2008	11.481683424255412
2009	10.79168918562855
2010	10.282200413401462
2011	9.859031792998644
2012	9.63654791063133
2013	9.482141119688935
2014	9.427670304540344
2015	9.411581182958445
2016	9.365763799921849
2017	9.266321342151349
2018	9.318156116625484
2019	9.840603147053669
2020	10.538204054682682
2021	11.031728377982493