Year	Number
1996	100
1998	100
2000	100
2002	100
2003	95.0248718261719
2004	94.711540222168
2005	90.9090881347656
2006	93.7799072265625
2007	92.8229675292969
2008	93.2692337036133
2009	87.6777267456055
2010	87.6777267456055
2011	86.3849792480469
2012	86.3849792480469
2013	86.8544616699219
2014	81.7307662963867
2015	84.7619018554688
2016	85.2380981445313
2017	84.2857131958008
2018	83.8095245361328
2019	82.3809509277344
2020	82.8571395874023
2021	82.3809509277344
2022	83.0188674926758