Year	Percent
1990	0
1996	0.65147
1997	1.28296
1998	2.52618
1999	6.22905
2000	7.39563
2001	11.0151
2002	14.30417
2003	14.5925
2004	24.27214
2005	25.41327
2006	34.95197
2007	38.38
2008	40.44
2010	41
2011	43.164
2012	47.076
2013	50.4
2014	51.2547
2015	54.25962
2016	56.51471