Year	Number
1996	-0.231283530592918
1998	-0.073845736682415
2000	-0.124804936349392
2002	-0.256923526525497
2003	-0.39022970199585
2004	-0.446592062711716
2005	-0.392353922128677
2006	-0.233389332890511
2007	-0.223225876688957
2008	-0.161350831389427
2009	-0.163394451141357
2010	-0.116028167307377
2011	-0.173335298895836
2012	-0.0618661120533943
2013	-0.0211300067603588
2014	0.0333384610712528
2015	0.0140787828713655
2016	-0.00929667800664902
2017	-0.0385953709483147
2018	-0.0285366922616959
2019	-0.0187732968479395
2020	0.0231650732457638
2021	0.0779508575797081
2022	0.0695477873086929