Year	Percent
1990	0
1995	0.00881
1996	0.01816
1997	0.11274
1998	0.14581
1999	0.50847
2000	1.25565
2001	1.65324
2002	2.03957
2007	9
2008	9.8
2009	10
2010	10.2
2011	12.49999
2012	16.4
2013	17.69998
2014	19.94245
2015	22.5
2016	22.26577