Year	Number
1996	57.9234962463379
1998	50.8196716308594
2000	50.2732238769531
2002	55.1351356506348
2003	44.3243255615234
2004	46.766170501709
2005	47.0588226318359
2006	42.4390258789063
2007	38.3495140075684
2008	48.0582542419434
2009	36.3636360168457
2010	33.4928245544434
2011	39.3364944458008
2012	39.3364944458008
2013	40.7582931518555
2014	38.9423065185547
2015	35.238094329834
2016	34.2857131958008
2017	38.5714302062988
2018	40
2019	45.7142868041992
2020	50.9523811340332
2021	53.8095245361328
2022	52.8301887512207