Year	Number
1996	0.574426710605621
1998	0.592054188251495
2000	0.594717025756836
2002	0.791837811470032
2003	0.770817875862122
2004	0.883017778396606
2005	0.903708636760712
2006	1.12973201274872
2007	1.12227547168732
2008	1.15543973445892
2009	1.12465858459473
2010	1.15312993526459
2011	1.17581498622894
2012	1.15094149112701
2013	1.19148790836334
2014	1.36998879909515
2015	1.30043995380402
2016	1.1927490234375
2017	1.24759435653687
2018	1.20360350608826
2019	1.24315118789673
2020	1.33646464347839
2021	1.38953363895416
2022	1.42638909816742