Year	Number
1996	47.7386932373047
1998	45
2000	38.8059692382813
2002	38.3084564208984
2003	39.3034820556641
2004	37.5
2005	34.4497604370117
2006	26.3157901763916
2007	25.3588523864746
2008	21.634614944458
2009	17.5355453491211
2010	20.3791465759277
2011	19.7183094024658
2012	23.9436626434326
2013	33.8028182983398
2014	28.8461532592773
2015	28.5714282989502
2016	38.5714302062988
2017	34.2857131958008
2018	36.6666679382324
2019	44.2857131958008
2020	42.8571434020996
2021	50.9523811340332
2022	40.0943412780762