Year	% of population
1998	3.9
1999	2.07094931602478
2000	2.5
2001	2.8
2002	3.1
2003	3.4
2004	3.7
2005	3.2
2006	2.7
2007	4.7
2008	4.8
2009	5.4
2010	5.3
2011	6.2
2012	6.5
2013	6.9
2014	7
2015	7.9
2016	8.5
2017	9.3
2018	9.5
2019	9.8
2020	9.1
2021	10.2
2022	10.3