Year	Percent
1993	0.36856
1994	0.06904
1995	0.0392
1996	0.17129
1997	0.35519
1998	0.76892
1999	-1.28721
2000	0.52257
2001	0.0799
2002	0.31781
2003	0.92767
2004	0.00772
2005	1.61953
2006	0.70467
2007	1.90464
2008	0.52081
2009	2.80032
2010	1.38612
2011	2.74498
2012	-1.31978
2013	1.29615
2014	0.27741
2015	1.61997
2016	4.58542
2017	4.19674