Year	Number
1996	0.388550758361816
1998	0.401742517948151
2000	0.618822574615479
2002	0.834610283374786
2003	1.34903717041016
2004	1.18255519866943
2005	1.28759801387787
2006	1.02123284339905
2007	0.991429924964905
2008	1.01344287395477
2009	1.34572219848633
2010	1.35015833377838
2011	1.32617700099945
2012	1.08708012104034
2013	1.05894887447357
2014	1.46309566497803
2015	1.41356551647186
2016	1.1409375667572
2017	1.33527708053589
2018	1.15808200836182
2019	1.12526774406433
2020	1.07522451877594
2021	1.08404016494751
2022	1.10533332824707