Year	Percent
1993	100.76367
1994	96.26304
1995	88.03153
1996	79.07869
1997	101.60337
1998	96.26807
1999	92.55456
2000	93.76524
2001	96.32161
2002	94.59821
2003	95.09535
2004	96.28642
2005	97.25189
2006	92.21774
2007	97.80458
2008	91.66038
2009	92.07533
2010	89.98708
2011	93.34938
2012	92.33953
2013	89.43961
2014	98.57418
2015	104.737
2016	112.69454