Year	% of population
2001	12.26794386280431
2002	11.722475301643225
2003	10.980199454504532
2004	10.357850306104677
2005	9.666933219074817
2006	8.891008911538046
2007	7.986590349583235
2008	7.067571531136673
2009	6.054145464030551
2010	5.489837995891869
2011	5.085046975529052
2012	4.852900458889109
2013	4.6324851882833
2014	4.505057030485297
2015	4.333491704157794
2016	4.181320157594557
2017	4.021664368243324
2018	3.9146058212614787
2019	3.865792881926668
2020	3.8784784786919495
2021	3.896082423147944