Year	Number
2005	-0.316166281700134
2006	-0.646908700466156
2007	-0.822250843048096
2008	-0.764792680740356
2009	-0.689701557159424
2010	-0.716677844524384
2011	-0.306141883134842
2012	-0.224154844880104
2013	-0.000668602180667222
2014	-0.0144994370639324
2015	0.648119211196899
2016	0.706911265850067
2017	0.775618433952332
2018	0.348221093416214
2019	0.367132216691971
2020	0.46734556555748
2021	0.416723072528839
2022	0.385005086660385