Year	Number
1996	-0.454697042703629
1998	-0.354707360267639
2000	-0.561387360095978
2002	-0.563064634799957
2003	-0.570908546447754
2004	-0.805464208126068
2005	-0.796116292476654
2006	-0.691974639892578
2007	-0.663869917392731
2008	-0.647270858287811
2009	-0.709745109081268
2010	-0.720754623413086
2011	-0.724510610103607
2012	-0.787666738033295
2013	-0.726908981800079
2014	-0.761851191520691
2015	-0.76994127035141
2016	-0.653969824314117
2017	-0.692472994327545
2018	-0.717828691005707
2019	-0.726433575153351
2020	-0.712843358516693
2021	-0.782320499420166
2022	-0.906891822814941