Year	Number
1996	-0.640733182430267
1998	-0.724588930606842
2000	-0.838553190231323
2002	-0.571167230606079
2003	-0.409025520086288
2004	-0.181954219937325
2005	-0.332176029682159
2006	-0.130026549100876
2007	-0.236620664596558
2008	-0.0898382440209389
2009	-0.130520239472389
2010	-0.181226417422295
2011	-0.221158087253571
2012	-0.210188359022141
2013	-0.167774468660355
2014	0.0165125392377377
2015	-0.0294481124728918
2016	-0.0327256508171558
2017	-0.0173626989126205
2018	0.0558764338493347
2019	-0.123897232115269
2020	0.0283371973782778
2021	-0.121169298887253
2022	-0.0810714960098267