Year	Number
1996	-0.371093899011612
1998	-0.560736000537872
2000	-0.478630423545837
2002	0.00122348207514733
2003	-0.208431333303452
2004	-0.323700606822968
2005	-0.0555555932223797
2006	-0.182527557015419
2007	-0.18603253364563
2008	-0.266752243041992
2009	-0.328544199466705
2010	-0.417824774980545
2011	-0.484609842300415
2012	-0.670311391353607
2013	-0.763889014720917
2014	-0.842870652675629
2015	-0.880011737346649
2016	-0.934489011764526
2017	-1.07451629638672
2018	-1.02054178714752
2019	-1.05220568180084
2020	-1.00964295864105
2021	-0.952458918094635
2022	-1.00865089893341