Year	Number
1996	-0.48002901673317
1998	-0.434724658727646
2000	-0.370127260684967
2002	0.0386155806481838
2003	-0.000992403482086957
2004	-0.152925461530685
2005	-0.209769800305367
2006	0.181888371706009
2007	0.0134804463014007
2008	-0.066223256289959
2009	-0.0834323316812515
2010	-0.101529344916344
2011	-0.0892456248402596
2012	0.0723328962922096
2013	0.120267108082771
2014	0.162016585469246
2015	0.11473236978054
2016	-0.0129027962684631
2017	-0.00893578492105007
2018	0.00887552369385958
2019	-0.0116495657712221
2020	-0.00560475699603558
2021	-0.0135455802083015
2022	0.0513854324817657