Year	Percent
1990	0.00812
1991	-0.00819
1992	0.01378
1993	0.01874
1994	0.02617
1995	0.02955
1996	0.03439
1997	0.02954
1998	0.19153
1999	0.09899
2000	0.00465
2001	-0.06666
2002	0.09563
2003	0.49974
2004	0.83849
2005	1.35043
2006	3.13359
2007	1.76804
2008	0.87408
2009	1.34858
2010	1.98531
2011	0.9105
2012	0.26521
2013	-0.65066
2014	1.24711
2015	1.02921
2016	2.36954
2017	0.71267