Year	Number
1996	38.2513656616211
1998	30.0546455383301
2000	44.2622947692871
2002	42.7027015686035
2003	31.8918914794922
2004	33.3333320617676
2005	38.235294342041
2006	44.8780479431152
2007	48.0582542419434
2008	44.1747589111328
2009	41.1483268737793
2010	41.1483268737793
2011	42.1800956726074
2012	42.1800956726074
2013	41.2322273254395
2014	27.884614944458
2015	31.9047622680664
2016	33.3333320617676
2017	33.8095245361328
2018	32.3809509277344
2019	31.9047622680664
2020	33.8095245361328
2021	33.3333320617676
2022	35.3773574829102