Year	Number
1996	100
1998	98.3606567382813
2000	99.4535522460938
2002	98.3783798217773
2003	99.4594573974609
2004	100
2005	99.0196075439453
2006	98.0487823486328
2007	99.0291290283203
2008	99.0291290283203
2009	98.5645904541016
2010	99.0430603027344
2011	98.5782012939453
2012	98.5782012939453
2013	99.052131652832
2014	98.5576934814453
2015	99.0476226806641
2016	99.0476226806641
2017	96.6666641235352
2018	98.5714263916016
2019	98.5714263916016
2020	99.0476226806641
2021	97.6190490722656
2022	98.1132049560547