Year	Number
1996	0.559609055519104
1998	0.675648868083954
2000	0.533818602561951
2002	0.826159775257111
2003	0.322430104017258
2004	0.164906054735184
2005	0.200640663504601
2006	-0.0341241136193275
2007	0.0474123023450375
2008	0.0651512742042542
2009	0.12231682240963
2010	0.0654169842600822
2011	-0.000270605407422408
2012	-0.000778838410042226
2013	-0.04863640666008
2014	-0.151400715112686
2015	0.0162476319819689
2016	-0.442044198513031
2017	-0.0948314443230629
2018	-0.0875868499279022
2019	0.214429125189781
2020	0.247992232441902
2021	0.0352661535143852
2022	0.0458285696804523