Year	Number
1996	100
1998	100
2000	100
2002	97.3544998168945
2003	83.4170837402344
2004	85.9223327636719
2005	95.1456298828125
2006	99.0338134765625
2007	98.5507278442383
2008	98.5576934814453
2009	92.890998840332
2010	90.5213241577148
2011	92.4170608520508
2012	89.0995254516602
2013	94.3127975463867
2014	93.8095245361328
2015	84.7619018554688
2016	87.1428604125977
2017	78.5714263916016
2018	78.7735824584961
2019	77.8301849365234
2020	84.9056625366211
2021	88.6792449951172
2022	83.9622650146484