Year	Number
1996	0.854371190071106
1998	0.50556892156601
2000	-0.250100612640381
2002	0.14875116944313
2003	0.478074342012405
2004	0.664763033390045
2005	0.625976085662842
2006	0.782249569892883
2007	1.01876068115234
2008	1.20101487636566
2009	0.929570853710175
2010	0.846940040588379
2011	0.911657512187958
2012	0.978104293346405
2013	0.958809971809387
2014	0.608740627765656
2015	0.725260257720947
2016	0.699528992176056
2017	0.621905207633972
2018	0.684950053691864
2019	0.528806626796722
2020	0.512376427650452
2021	0.518684864044189
2022	0.556306064128876