Year	% of population
2000	0.1
2001	0.1
2002	0.1
2003	0.1
2004	0.1
2005	0.1
2006	0.1
2007	0.2
2008	0.2
2009	0.2
2010	0.3
2011	0.3
2012	0.4
2013	0.5
2014	0.7
2015	0.9
2016	1.2
2017	1.7
2018	2.4
2019	3.3
2020	4.6
2021	6.2
2022	8.3