Year	Number
2002	-0.222040235996246
2003	-0.249594807624817
2004	-0.335041284561157
2005	-0.569692432880402
2006	-0.598673343658447
2007	-0.648965775966644
2008	-0.65031909942627
2009	-0.803566515445709
2010	-0.754676282405853
2011	-0.824016511440277
2012	-0.743892967700958
2013	-0.693943500518799
2014	-0.529522895812988
2015	-0.546577632427216
2016	-0.537286937236786
2017	-0.566189467906952
2018	-0.505638003349304
2019	-0.400570154190063
2020	-0.339756816625595
2021	-0.0724384933710098
2022	-0.265985161066055