Year	Number
1996	100
1998	100
2000	100
2002	98.4126968383789
2003	94.4723587036133
2004	89.8058242797852
2005	99.0291290283203
2006	98.5507278442383
2007	94.6859893798828
2008	94.2307662963867
2009	86.7298583984375
2010	93.8388595581055
2011	97.6303329467773
2012	89.0995254516602
2013	91.9431304931641
2014	69.523811340332
2015	86.1904754638672
2016	89.0476226806641
2017	90.476188659668
2018	87.2641525268555
2019	87.7358474731445
2020	87.7358474731445
2021	91.0377349853516
2022	92.4528274536133