Year	% of population
2001	5.594188778564034
2002	5.304536044307134
2003	5.040229120064158
2004	4.715735161674404
2005	4.479797783226952
2006	4.2441425153339
2007	4.08765710333155
2008	4.001849529523909
2009	3.7025536701219885
2010	3.3978926362667106
2011	3.07975727950309
2012	3.0141647557202202
2013	2.9766216501796325
2014	2.933745207269473
2015	2.8872154638757594
2016	2.8481951998337185
2017	2.8005466562878616
2018	2.781243666878546
2019	2.846795264092863
2020	2.8860286040215177
2021	2.9575152624043994