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	100
2012	100
2013	100
2014	99.014778137207
2015	99.5073928833008
2016	97.5369491577148
2017	97.5369491577148
2018	95.6310653686523
2019	96.1352691650391
2020	95.6521759033203
2021	95.6521759033203
2022	96.1352691650391