Year	Number
1996	0.882181823253632
1998	1.11591935157776
2000	1.18071973323822
2002	1.07719624042511
2003	1.03226470947266
2004	0.501932442188263
2005	0.811711966991425
2006	0.758358776569366
2007	0.0831864848732948
2008	-0.164438739418983
2009	-0.229707628488541
2010	-0.166243851184845
2011	-0.242630183696747
2012	-0.36517146229744
2013	0.125037372112274
2014	0.679096162319183
2015	0.411403715610504
2016	0.408033192157745
2017	0.224531188607216
2018	0.0829711183905602
2019	0.0276085305958986
2020	0.362981379032135
2021	0.534778356552124
2022	0.667752325534821