Year	Number
1996	99.4535522460938
1998	100
2000	100
2002	100
2003	100
2004	100
2005	99.0196075439453
2006	100
2007	100
2008	100
2009	100
2010	100
2011	100
2012	100
2013	100
2014	100
2015	99.523811340332
2016	99.523811340332
2017	100
2018	99.523811340332
2019	99.523811340332
2020	100
2021	99.523811340332
2022	99.5283050537109