Year	% of population
1990	0
1991	0
1992	0.012082134
1993	0.041587233
1994	0.055486978
1995	0.122214848
1996	0.24826058
1997	0.390959318
1998	1.383990391
1999	2.839825767
2000	3.359597465
2001	4.636000948
2002	4.910446327
2003	7.499963465
2004	8.404469592
2005	12.55299791
2006	15.22471148
2007	20.83
2008	25.88
2009	32.7
2010	37.37
2011	40.22
2012	49.05008307
2013	54.9
2014	57
2015	58
2016	60
2017	61.6