Year	Number
1996	100
1998	100
2000	100
2002	100
2003	100
2004	90.3846130371094
2005	90.4306182861328
2006	90.4306182861328
2007	89.9521560668945
2008	90.8653869628906
2009	91.4691925048828
2010	90.9952621459961
2011	90.6103286743164
2012	90.1408462524414
2013	90.6103286743164
2014	62.5
2015	81.9047622680664
2016	81.4285736083984
2017	81.4285736083984
2018	82.3809509277344
2019	80
2020	83.3333358764648
2021	81.9047622680664
2022	82.5471725463867