Year	Number
1996	0.717076897621155
1998	0.728511989116669
2000	0.713235020637512
2002	0.792559921741486
2003	0.865690112113953
2004	1.08463561534882
2005	0.830512523651123
2006	0.799820721149445
2007	0.802670180797577
2008	0.81389182806015
2009	0.721793532371521
2010	0.904999375343323
2011	0.957588255405426
2012	0.975788056850433
2013	0.958863377571106
2014	0.984550714492798
2015	0.987564265727997
2016	0.859249651432037
2017	0.732059717178345
2018	0.822919726371765
2019	0.937967896461487
2020	0.929504930973053
2021	0.949530005455017
2022	0.94386225938797