Year	Number
1996	0.935005784034729
1998	0.879612982273102
2000	1.08280909061432
2002	0.285476922988892
2003	0.0804403498768806
2004	-0.233039826154709
2005	-0.0605432577431202
2006	0.49083548784256
2007	0.374478042125702
2008	0.582659542560577
2009	0.447313606739044
2010	0.438403934240341
2011	0.591247260570526
2012	0.632442116737366
2013	0.643072605133057
2014	0.582419633865356
2015	0.662890195846558
2016	0.385635316371918
2017	0.26220178604126
2018	0.386042565107346
2019	0.117876663804054
2020	-0.0269290637224913
2021	-0.0148778762668371
2022	-0.0360050275921822