Year	Percent
1990	0
1993	0.09721
1994	0.26832
1995	0.51403
1996	0.85898
1997	1.72961
1998	3.27322
1999	4.40536
2000	6.64488
2001	11.55857
2002	17.76
2003	22.75
2004	30.91
2005	33.14
2006	37.98
2007	41.44
2008	44.24
2009	50.58
2010	56.55
2011	57.78998
2012	61.93997
2013	66.7476
2014	68.57
2015	69.8031
2016	72.69731
2017	67.09619