Year	Number
1996	-0.131352260708809
1998	-0.0805978253483772
2000	-0.0350389443337917
2002	-0.514396369457245
2003	0.114630743861198
2004	-0.0594780258834362
2005	-0.386098802089691
2006	0.168790400028229
2007	0.256654739379883
2008	0.20754437148571
2009	0.373302400112152
2010	0.236128225922585
2011	0.150343805551529
2012	0.232703447341919
2013	0.120355181396008
2014	-0.374146550893784
2015	-0.207799196243286
2016	-0.146742969751358
2017	-0.172020316123962
2018	-0.0902423709630966
2019	-0.147936090826988
2020	-0.221582889556885
2021	-0.202780559659004
2022	-0.0742535442113876