Year	%
1990	0
1992	0
1993	0.0177747
1994	0.1227031
1995	0.2719807
1996	0.8232217
1997	23.85502
1998	3.091011
1999	0.3812583
2000	0.3108919
2001	0.3004447
2002	0.3645002
2003	0.2787792
2004	0.1936174
2005	0.3069956
2006	0.5675215
2007	0.2058404
2008	0.2229251
2009	0.1323503
2010	0.1100905
2011	0.2867946
2012	0.3306951
2013	0.3398413
2014	0.0237877
2015	0.2622532
2016	0.2373232
2017	0.2725858