Year	% of population
1992	2.3
1997	1.02783596515656
1998	2.17412757873535
1999	3.31557703018188
2000	6.2
2001	4.7
2002	6
2003	7.4
2004	8.7
2005	4.8
2006	11.4
2007	12.8
2008	6
2009	15.6
2010	9.7
2011	10.8
2012	17.5
2013	15.2
2014	19.8
2015	22.8
2016	29.4
2017	34.1
2018	38
2019	46.6
2020	45.2
2021	48.7
2022	50.6