Year	Number
1996	-0.805689930915833
1998	-0.832234144210815
2000	-0.802073955535889
2002	-0.732186138629913
2003	-0.701580405235291
2004	-0.680054008960724
2005	-0.633744418621063
2006	-0.619978487491608
2007	-0.609173476696014
2008	-0.616658091545105
2009	-0.600408315658569
2010	-0.487646609544754
2011	-0.579845726490021
2012	-0.598753094673157
2013	-0.819912970066071
2014	-0.80894935131073
2015	-0.868800401687622
2016	-1.07471215724945
2017	-1.00833284854889
2018	-1.06734263896942
2019	-1.05603158473969
2020	-1.0616340637207
2021	-1.04104149341583
2022	-1.02147579193115