Year	Number
1996	100
1998	100
2000	100
2002	100
2003	100
2004	100
2005	100
2006	98.5365829467773
2007	99.5145645141602
2008	99.5145645141602
2009	100
2010	100
2011	100
2012	100
2013	99.052131652832
2014	99.038459777832
2015	99.523811340332
2016	99.523811340332
2017	99.523811340332
2018	99.523811340332
2019	99.523811340332
2020	99.523811340332
2021	98.5714263916016
2022	98.1132049560547