Year	Number
1996	-0.758760750293732
1998	-0.717875599861145
2000	-0.767446219921112
2002	-0.80527251958847
2003	-0.850594282150269
2004	-0.682446479797363
2005	-0.653496861457825
2006	-0.434554874897003
2007	-0.677934110164642
2008	-0.862080752849579
2009	-0.953719019889832
2010	-0.823600351810455
2011	-1.00567626953125
2012	-0.935010075569153
2013	-0.928261876106262
2014	-0.881757915019989
2015	-0.985828936100006
2016	-1.09477424621582
2017	-1.03172338008881
2018	-0.915981352329254
2019	-1.02661550045013
2020	-1.13027155399323
2021	-1.11006689071655
2022	-1.0364933013916