Year	Number
1996	100
1998	99.4652404785156
2000	99.4680862426758
2002	99.4709014892578
2003	99.4709014892578
2004	99.5073928833008
2005	99.0243911743164
2006	100
2007	100
2008	100
2009	100
2010	100
2011	100
2012	100
2013	100
2014	100
2015	98.5714263916016
2016	99.523811340332
2017	99.0476226806641
2018	99.523811340332
2019	99.523811340332
2020	100
2021	100
2022	100