Year	Number
2004	0.323294550180435
2005	-0.120893590152264
2006	-0.104157447814941
2007	-0.240319490432739
2008	-0.21752493083477
2009	-0.219170406460762
2010	-0.259419351816177
2011	-0.344322592020035
2012	-0.124001890420914
2013	-0.179917350411415
2014	0.812802195549011
2015	0.677290916442871
2016	0.706911265850067
2017	0.775618433952332
2018	0.672230362892151
2019	0.709070801734924
2020	0.875658690929413
2021	0.563614368438721
2022	0.484119057655334