Year	Number
1996	0.0781566128134727
1998	0.0751297175884247
2000	-0.0639694631099701
2002	-0.160774856805801
2003	-0.207606077194214
2004	-0.423719346523285
2005	-0.306904882192612
2006	0.0122540332376957
2007	0.0661681815981865
2008	0.0103012612089515
2009	-0.0105109317228198
2010	-0.0305312536656857
2011	-0.0388280488550663
2012	-0.0591049715876579
2013	-0.00446306075900793
2014	0.0125195533037186
2015	0.0447562374174595
2016	0.158445417881012
2017	0.132895827293396
2018	0.0635633021593094
2019	0.0942080393433571
2020	0.0336307026445866
2021	0.0302433706820011
2022	-0.014180064201355