Year	%
1989	1.293283
1990	0.4314874
1992	0.3327045
1993	0.6531149
1994	0.3574752
1995	3.172698
1996	0.2029533
1997	0.0368739
1998	1.162125
1999	0.5456387
2000	0.1906713
2001	0.225928
2002	0.571593
2003	1.007453
2004	0.0322546
2005	0.0659559
2006	0.0680485
2007	0.0527096
2008	0.0967241
2009	0.0456751
2010	1.077874
2011	0.9570894
2012	0.9864574
2013	1.070724
2014	0.0291315
2015	2.424894
2016	0.7783981
2017	1.099936