Year	Number
1996	100
1998	100
2000	100
2002	100
2003	95.5223846435547
2004	94.2307662963867
2005	95.1923065185547
2006	92.788459777832
2007	93.2692337036133
2008	94.711540222168
2009	93.8388595581055
2010	96.2085342407227
2011	89.6713638305664
2012	90.1408462524414
2013	90.1408462524414
2014	95.5665054321289
2015	95.5665054321289
2016	89.6551742553711
2017	89.6551742553711
2018	86.4077682495117
2019	80.6763305664063
2020	81.6425094604492
2021	87.4396133422852
2022	87.4396133422852