Year	Number
1996	100
1998	100
2000	100
2002	100
2003	100
2004	100
2005	100
2006	100
2007	100
2008	100
2009	100
2010	100
2011	99.5260696411133
2012	99.5260696411133
2013	99.5260696411133
2014	99.523811340332
2015	96.1904754638672
2016	94.7619018554688
2017	97.6190490722656
2018	91.9811325073242
2019	92.4528274536133
2020	95.2830200195313
2021	95.7547149658203
2022	95.2830200195313