Year	Number
1996	-0.303403049707413
1998	-0.31945538520813
2000	-0.280462771654129
2002	-0.166766956448555
2003	-0.19057497382164
2004	0.0466941632330418
2005	-0.0362686142325401
2006	0.112958908081055
2007	0.0808289721608162
2008	0.0795686021447182
2009	0.119992300868034
2010	0.0388533286750317
2011	-0.192856058478355
2012	-0.163849368691444
2013	-0.178690433502197
2014	-0.0686189457774162
2015	-0.0464252680540085
2016	0.0218640528619289
2017	0.0933556407690048
2018	0.0534470789134502
2019	0.0867515727877617
2020	0.142935648560524
2021	0.0657181367278099
2022	-0.0853122770786285