Year	Number
1996	-0.717159688472748
1998	-0.822418808937073
2000	-0.857414662837982
2002	-0.638883829116821
2003	-0.611243188381195
2004	-0.467083603143692
2005	-0.623985469341278
2006	-0.530395030975342
2007	-0.437243163585663
2008	-0.386879175901413
2009	-0.182950586080551
2010	-0.0656579732894897
2011	-0.0168969519436359
2012	-0.0703262537717819
2013	-0.0626247003674507
2014	0.181434169411659
2015	0.136262819170952
2016	0.0249312389642
2017	-0.0465733371675015
2018	0.0996957719326019
2019	0.097264789044857
2020	0.0803963541984558
2021	0.0355201736092567
2022	0.137092441320419