Year	Percent
1990	0
1994	0.00764
1995	0.05612
1996	0.22
1997	0.53907
1998	2.75065
1999	3.83686
2000	6.5548
2001	7.2684
2002	8.51808
2003	9.98742
2004	11.14086
2005	11.48401
2006	17.34957
2007	22.29
2008	33.82
2009	39.08
2010	40.1
2011	42.7
2012	40.3019
2013	44.03
2014	44.92
2015	51.20542
2016	54