Year	%
1988	9.91333
1989	0.3945076
1990	16.38955
1991	18.51226
1992	0.0359638
1993	0.278589
1994	0.3509952
1995	3.58261
1996	25.44245
1997	0.323108
1998	0.1137241
1999	0.8045355
2000	0.3344694
2001	0.2827048
2002	0.7954304
2003	0.3637677
2004	0.1445216
2005	0.1993399
2006	0.5020949
2007	0.5759964
2008	0.5214363
2009	0.5765571
2010	0.3048035
2011	0.8624172
2012	0.3146211
2013	0.3567618
2014	0.0391023
2015	0.4849351
2016	0.5323016
2017	0.0962686