Year	Number
2007	-0.58464378118515
2008	-0.437905967235565
2009	-0.399382352828979
2010	-0.564871191978455
2011	-0.582938611507416
2012	-0.557751059532166
2013	-0.578649342060089
2014	-0.568305134773254
2015	-0.120835348963737
2016	-0.0796676874160767
2017	-0.0456744581460953
2018	0.273034930229187
2019	-0.00379154761321843
2020	0.145206913352013
2021	0.0982896611094475
2022	0.199985399842262