Year	Number
1996	0.53628271818161
1998	0.754812836647034
2000	0.99294239282608
2002	0.92150604724884
2003	1.04106783866882
2004	1.04575204849243
2005	1.04338908195496
2006	1.23769116401672
2007	1.22411561012268
2008	1.05022716522217
2009	0.895370304584503
2010	1.04647839069366
2011	0.98675674200058
2012	0.906338155269623
2013	0.993093609809875
2014	1.14677739143372
2015	0.91693377494812
2016	0.8176429271698
2017	0.777292728424072
2018	1.05384254455566
2019	0.967821717262268
2020	1.02247262001038
2021	0.953544080257416
2022	0.993270576000214