Year	Number
1996	-0.910771250724792
1998	-1.03067064285278
2000	-0.683763086795807
2002	-0.607061386108398
2003	-0.466205179691315
2004	-0.234620720148087
2005	-0.57891309261322
2006	-0.468090146780014
2007	-0.28661647439003
2008	-0.17543862760067
2009	-0.110355965793133
2010	-0.119476206600666
2011	-0.0589661672711372
2012	-0.0617377646267414
2013	-0.0748986825346947
2014	-0.0416726805269718
2015	-0.184997484087944
2016	-0.139020889997482
2017	-0.0576597340404987
2018	-0.141394659876823
2019	-0.128735393285751
2020	-0.182392880320549
2021	-0.195087149739265
2022	-0.157615318894386