Year	Number
1996	0.8958460688591
1998	1.01715230941772
2000	0.944507837295532
2002	1.00008070468903
2003	0.924558162689209
2004	0.899706065654755
2005	0.94124299287796
2006	0.830360054969788
2007	0.851229131221771
2008	0.938418507575989
2009	0.897427082061768
2010	0.887274205684662
2011	0.935304999351501
2012	1.02395617961884
2013	0.966420888900757
2014	0.948893070220947
2015	0.843326032161713
2016	0.687382340431213
2017	0.668395757675171
2018	0.709945678710938
2019	0.696283936500549
2020	0.890954434871674
2021	0.846016705036163
2022	0.79998904466629