Year	%
1991	0
1993	0
1994	0.0055281
1995	0.3443069
1996	0.3954614
1997	0.0639514
1998	0.5359481
1999	0.1523517
2000	2.199789
2001	1.301943
2002	0.537524
2003	0.4027879
2004	0.4120525
2005	0.393357
2006	0.4088858
2007	0.4510794
2008	0.3913555
2009	0.4136293
2010	0.2226813
2011	0.3099991
2012	0.3853929
2013	0.8960367
2014	0.0101466
2015	1.152726
2016	1.144831
2017	0.6697056