Year	Number
1996	-0.893903493881226
1998	-0.992024779319763
2000	-0.855563640594482
2002	-0.8453409075737
2003	-0.853786587715149
2004	-0.723731815814972
2005	-0.813263893127441
2006	-0.790545284748077
2007	-0.706940054893494
2008	-0.605212390422821
2009	-0.545270919799805
2010	-0.531616508960724
2011	-0.701794147491455
2012	-0.778729438781738
2013	-0.750955939292908
2014	-0.586141347885132
2015	-0.544385254383087
2016	-0.471469223499298
2017	-0.480890601873398
2018	-0.545840263366699
2019	-0.563899636268616
2020	-0.572924494743347
2021	-0.576535522937775
2022	-0.407875537872314