Year	Number
1996	0.887499451637268
1998	0.698888778686523
2000	0.785089075565338
2002	0.924183249473572
2003	0.179551064968109
2004	0.345115303993225
2005	0.399723917245865
2006	0.595505774021149
2007	0.563000798225403
2008	0.543759167194366
2009	0.512012898921967
2010	0.681087553501129
2011	0.602992832660675
2012	0.554941534996033
2013	0.448744118213654
2014	0.300568491220474
2015	0.0977598056197166
2016	-0.106349594891071
2017	0.265700727701187
2018	0.0137935001403093
2019	0.271274894475937
2020	0.280948132276535
2021	0.32552382349968
2022	0.334524124860764