Year	Number
1996	100
1998	100
2000	100
2002	93.5135116577148
2003	96.7567596435547
2004	96.5174102783203
2005	99.0196075439453
2006	100
2007	100
2008	100
2009	100
2010	100
2011	99.5260696411133
2012	99.5260696411133
2013	99.5260696411133
2014	100
2015	100
2016	100
2017	100
2018	100
2019	100
2020	100
2021	100
2022	100