Year	Number
1996	98.9949722290039
1998	100
2000	100
2002	99.5024871826172
2003	100
2004	99.5192337036133
2005	100
2006	99.0430603027344
2007	98.5645904541016
2008	98.0769195556641
2009	100
2010	100
2011	100
2012	99.530517578125
2013	99.530517578125
2014	100
2015	100
2016	100
2017	100
2018	100
2019	100
2020	100
2021	100
2022	100