Year	Number
1996	100
1998	100
2000	99.5024871826172
2002	100
2003	100
2004	82.211540222168
2005	98.0769195556641
2006	99.5192337036133
2007	100
2008	100
2009	100
2010	99.5260696411133
2011	96.7136154174805
2012	96.2441329956055
2013	96.2441329956055
2014	99.014778137207
2015	94.0886688232422
2016	93.596061706543
2017	92.61083984375
2018	89.3203887939453
2019	89.3719787597656
2020	88.4057998657227
2021	88.8888854980469
2022	88.8888854980469