Year	Percent
1994	0.0383
1995	0.02534
1996	0.42641
1997	0.22114
1998	0.58516
1999	0.20496
2000	8.16636
2001	6.3465
2002	10.68875
2003	10.94235
2004	8.01445
2005	13.69873
2006	6.21904
2007	8.69828
2008	5.45834
2009	13.91972
2010	12.14138
2011	6.5038
2012	23.73639
2013	13.20043
2014	20.74938
2016	15.5699