Year	Number
1996	38.2978706359863
1998	33.5106391906738
2000	42.3280410766602
2002	32.2751312255859
2003	42.2110557556152
2004	41.7475738525391
2005	47.5728149414063
2006	48.7922706604004
2007	46.8599052429199
2008	51.9230766296387
2009	43.6018943786621
2010	47.8672981262207
2011	54.502368927002
2012	54.9763031005859
2013	54.502368927002
2014	54.761905670166
2015	54.2857131958008
2016	54.761905670166
2017	53.3333320617676
2018	52.8301887512207
2019	54.2452812194824
2020	44.3396224975586
2021	48.113208770752
2022	48.5849075317383