Year	Number
1996	0.152574241161346
1998	0.226074695587158
2000	-0.346214205026627
2002	0.0286506414413452
2003	0.0666418224573135
2004	-0.0370266474783421
2005	0.0493086352944374
2006	-0.325200825929642
2007	-0.650255858898163
2008	-0.70470142364502
2009	-0.910686910152435
2010	-1.1063551902771
2011	-1.09306156635284
2012	-0.978677988052368
2013	-0.909593224525452
2014	-0.176620543003082
2015	0.0277928430587053
2016	0.0285748485475779
2017	0.122923940420151
2018	0.147889748215675
2019	0.0224821381270885
2020	0.0570730641484261
2021	-0.16624815762043
2022	-0.149171754717827