Year	Number
2004	0.791444957256317
2005	-0.120893590152264
2006	-0.104157447814941
2007	-0.240319490432739
2008	-0.21752493083477
2009	-0.219170406460762
2010	-0.259419351816177
2011	-0.266759753227234
2012	-0.345227032899857
2013	-0.393216013908386
2014	0.0276108961552382
2015	0.00584867876023054
2016	0.0554391071200371
2017	0.0694240033626556
2018	0.0511946864426136
2019	0.386845588684082
2020	0.484758734703064
2021	0.660916447639465
2022	0.651753723621368