Year	Number
1996	-0.616937637329102
1998	-0.518381953239441
2000	-0.758837521076202
2002	-0.747169494628906
2003	-0.945253908634186
2004	-0.762719392776489
2005	-1.01297163963318
2006	-0.834696292877197
2007	-0.861481845378876
2008	-0.916235208511353
2009	-0.912058353424072
2010	-0.932511210441589
2011	-0.810600578784943
2012	-0.832595944404602
2013	-0.942069947719574
2014	-0.774425446987152
2015	-0.869617104530334
2016	-0.780686795711517
2017	-0.820549845695496
2018	-0.764962136745453
2019	-0.800446093082428
2020	-0.71127724647522
2021	-0.751807808876038
2022	-0.616135001182556