Year	Number
1996	-0.929817795753479
1998	-1.04934310913086
2000	-0.941208124160767
2002	-1.05544149875641
2003	-1.04474914073944
2004	-1.17591226100922
2005	-1.081751704216
2006	-1.00554251670837
2007	-0.953167855739594
2008	-0.914517819881439
2009	-0.866342842578888
2010	-0.857593059539795
2011	-0.817078590393066
2012	-0.95947253704071
2013	-0.923936903476715
2014	-0.95516049861908
2015	-0.92024040222168
2016	-0.811327993869781
2017	-0.826628148555756
2018	-0.849186778068542
2019	-0.937222182750702
2020	-0.906213521957397
2021	-0.84635329246521
2022	-0.927658915519714