Year	Percent
1990	115.02297
1992	96.41173
1993	94.43325
1999	100.43417
2000	98.21951
2001	97.52493
2002	96.60295
2003	92.9768
2004	96.43131
2005	89.33102
2006	94.47328
2007	92.65755
2008	92.69609
2009	90.71866
2010	92.25275
2011	93.07952
2012	94.65436
2013	91.19086
2014	95.01151
2015	96.35359
2016	101.64804