Year	Number
1996	23.4042549133301
1998	30.319149017334
2000	25.3968257904053
2002	31.7460308074951
2003	37.6884422302246
2004	29.6116504669189
2005	36.4077682495117
2006	48.7922706604004
2007	41.5458946228027
2008	43.75
2009	52.1327018737793
2010	45.0236968994141
2011	43.6018943786621
2012	45.497631072998
2013	25.5924167633057
2014	23.3333339691162
2015	19.5238094329834
2016	8.5714282989502
2017	9.5238094329834
2018	12.2641506195068
2019	12.2641506195068
2020	7.54716968536377
2021	7.54716968536377
2022	8.01886749267578