Year	Number
1996	-0.726646363735199
1998	-0.532132267951965
2000	-0.426509559154511
2002	-0.349208414554596
2003	-0.377902716398239
2004	-0.409910470247269
2005	-0.382989525794983
2006	-0.472546279430389
2007	-0.542932212352753
2008	-0.689283549785614
2009	-0.56286883354187
2010	-0.552031338214874
2011	-0.549887716770172
2012	-0.53518009185791
2013	-0.549149870872498
2014	-0.406367480754852
2015	-0.454451054334641
2016	-0.580000638961792
2017	-0.585919916629791
2018	-0.641823947429657
2019	-0.658984363079071
2020	-0.646558284759521
2021	-0.806147992610931
2022	-0.866642534732819