Year	Number
1996	54.8913040161133
1998	61.4130439758301
2000	55.9782600402832
2002	48.6486473083496
2003	52.972972869873
2004	41.7910461425781
2005	49.0196075439453
2006	50
2007	50.970874786377
2008	52.4271850585938
2009	50.2392349243164
2010	45.9330139160156
2011	48.8151664733887
2012	54.028434753418
2013	53.554500579834
2014	54.8076934814453
2015	53.8095245361328
2016	57.6190490722656
2017	59.523811340332
2018	56.1904754638672
2019	60
2020	57.1428565979004
2021	54.761905670166
2022	53.7735862731934