Year	% of population
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0.00352686
1997	0.003469104
1998	0.003415143
1999	0.016791049
2000	0.026354732
2001	0.032223616
2002	0.157249517
2003	0.460014187
2004	1.07750493
2005	1.46342006
2006	2.007990079
2007	2.759704374
2008	4.287509903
2009	4.5
2010	5
2011	5.6
2012	6.106695024
2013	6.6
2014	7.11
2015	7.615974662
2016	8.121949323
2017	8.65