Year	Number
1996	100
1998	100
2000	100
2002	100
2003	100
2004	98.0582504272461
2005	99.5145645141602
2006	98.5507278442383
2007	92.7536239624023
2008	99.038459777832
2009	90.5213241577148
2010	88.1516571044922
2011	89.5734634399414
2012	89.0995254516602
2013	88.6255950927734
2014	89.523811340332
2015	93.3333358764648
2016	94.2857131958008
2017	97.6190490722656
2018	98.1132049560547
2019	97.1698150634766
2020	96.698112487793
2021	94.8113174438477
2022	94.3396224975586