Year	Number
1996	1.28849947452545
1998	1.24214780330658
2000	1.41133570671082
2002	1.09601747989655
2003	0.577859222888947
2004	0.638884365558624
2005	0.888915359973907
2006	1.02506959438324
2007	0.995823800563812
2008	0.943830788135529
2009	0.859902501106262
2010	0.796834468841553
2011	0.842218458652496
2012	0.775621294975281
2013	0.92798388004303
2014	0.925186455249786
2015	0.687514960765839
2016	0.667541146278381
2017	0.574380218982697
2018	0.577707588672638
2019	0.548454642295837
2020	0.644988059997559
2021	0.725666701793671
2022	0.614759147167206