Year	Number
2004	0.374004453420639
2005	1.08787608146667
2006	0.808551013469696
2007	0.745012640953064
2008	0.791182458400726
2009	0.933032631874084
2010	0.832244396209717
2011	0.942930459976196
2012	0.740419745445251
2013	0.77896636724472
2014	0.0382621176540852
2015	-0.0159701816737652
2016	0.0970659106969833
2017	0.393038630485535
2018	0.330404460430145
2019	0.341672003269196
2020	0.306824326515198
2021	-0.120851926505566
2022	-0.0970938131213188