Year	Number
1996	16.0804023742676
1998	16.5
2000	18.4079608917236
2002	11.9402980804443
2003	11.4427862167358
2004	15.384614944458
2005	14.8325357437134
2006	26.3157901763916
2007	29.6650714874268
2008	23.0769233703613
2009	28.9099521636963
2010	28.9099521636963
2011	29.577465057373
2012	29.577465057373
2013	30.5164318084717
2014	29.8076915740967
2015	27.619047164917
2016	34.761905670166
2017	34.761905670166
2018	34.2857131958008
2019	42.3809509277344
2020	43.3333320617676
2021	37.6190490722656
2022	36.3207550048828