Year	Number
2000	0.440978795289993
2002	-0.486890375614166
2003	-0.286732971668243
2004	-0.156887859106064
2005	-0.707215547561646
2006	-1.15649831295013
2007	-1.10267806053162
2008	-0.798321664333344
2009	-0.565601110458374
2010	-0.467514544725418
2011	-0.462352424860001
2012	-0.284831136465073
2013	-0.384680241346359
2014	-0.179694876074791
2015	-0.271709710359573
2016	-0.017668042331934
2017	0.0663820803165436
2018	0.233176738023758
2019	0.243016809225082
2020	0.197355657815933
2021	0.192315369844437
2022	0.27340030670166