Year	Number
1996	0.869897186756134
1998	0.883366405963898
2000	0.861537575721741
2002	0.85021036863327
2003	0.854120075702667
2004	0.839856028556824
2005	0.742446184158325
2006	1.11961627006531
2007	1.14696705341339
2008	1.27677536010742
2009	1.3177649974823
2010	1.30177271366119
2011	1.27229809761047
2012	1.26053082942963
2013	1.25354850292206
2014	0.634897768497467
2015	0.642890870571136
2016	0.645558714866638
2017	0.197805091738701
2018	0.236239701509476
2019	0.239498108625412
2020	0.238533273339272
2021	0.231979250907898
2022	0.310604453086853