Year	Number
1996	-0.512428641319275
1998	-0.38992303609848
2000	-0.073860302567482
2002	-0.250572264194489
2003	-0.2415871322155
2004	-0.389334857463837
2005	-0.344179540872574
2006	-0.325125187635422
2007	-0.341457366943359
2008	-0.309849888086319
2009	-0.365960121154785
2010	-0.439748138189316
2011	-0.474737763404846
2012	-0.484527587890625
2013	-0.591520249843597
2014	-0.84264999628067
2015	-0.888690233230591
2016	-0.850071728229523
2017	-0.951904118061066
2018	-0.948684394359589
2019	-0.917184710502625
2020	-0.921504735946655
2021	-1.02031004428864
2022	-1.01186621189117