Year	% of population
1992	4.4
1993	4.01213979721069
1994	4.57177639007568
1995	6.2
1996	7
1997	6.23572778701782
1998	6.7
1999	7.32568216323853
2000	6.5
2001	8.4
2002	8.8
2003	9.3
2004	9.7
2005	7.1
2006	9.3
2007	11.2
2008	11.8
2009	12.3
2010	13.6
2011	14.3
2012	14.4
2013	15.2
2014	15.7
2015	16.6
2016	17
2017	17.6
2018	17.6
2019	18.5
2020	18.7
2021	18.6
2022	19.5