Year	Number
1996	100
1998	100
2000	93.121696472168
2002	100
2003	96.9849243164063
2004	99.5145645141602
2005	99.5145645141602
2006	100
2007	100
2008	100
2009	100
2010	99.5260696411133
2011	99.5260696411133
2012	99.5260696411133
2013	99.5260696411133
2014	99.523811340332
2015	98.5714263916016
2016	92.3809509277344
2017	96.1904754638672
2018	91.5094375610352
2019	93.3962249755859
2020	94.3396224975586
2021	94.3396224975586
2022	83.9622650146484