Year	Percent
1995	100.28203
1996	111.71254
1997	145.53198
1998	142.9917
1999	124.43036
2000	156.21442
2001	148.03678
2002	139.29122
2003	138.18567
2004	118.31971
2005	128.18859
2006	136.41656
2007	120.01264
2008	117.73247
2009	97.63689
2010	122.50596
2011	147.46478
2012	148.29146
2013	138.37685
2014	131.00034
2015	121.28514
2016	120.42482
2017	120.0156
