Year	Number
1996	-0.459796816110611
1998	-0.746503591537476
2000	-0.970572590827942
2002	-1.21135127544403
2003	-0.749351561069489
2004	-0.566143751144409
2005	-0.652078151702881
2006	-0.776525020599365
2007	-0.74012291431427
2008	-0.727450251579285
2009	-0.883586049079895
2010	-0.834862232208252
2011	-0.692596554756165
2012	-0.871902167797089
2013	-0.735861599445343
2014	-0.0886275097727776
2015	0.0352126285433769
2016	0.13447080552578
2017	-0.0028560443315655
2018	-0.0868015140295029
2019	-0.0180594231933355
2020	0.0166849344968796
2021	-0.00099959084764123
2022	0.0359779521822929