Year	Number
1996	50
1998	48.9361686706543
2000	60.8465614318848
2002	62.962963104248
2003	59.2964820861816
2004	53.8834953308105
2005	51.4563102722168
2006	54.1062812805176
2007	51.6908226013184
2008	50
2009	51.1848335266113
2010	53.554500579834
2011	54.502368927002
2012	56.3981056213379
2013	60.1895751953125
2014	60.476188659668
2015	57.6190490722656
2016	57.1428565979004
2017	58.0952377319336
2018	54.7169799804688
2019	56.6037750244141
2020	57.0754699707031
2021	58.0188674926758
2022	56.1320762634277