Year	Number
1996	40
1998	41.7910461425781
2000	48.2587051391602
2002	47.2636833190918
2003	41.2935333251953
2004	41.3461532592773
2005	37.980770111084
2006	46.1538467407227
2007	46.1538467407227
2008	45.6730766296387
2009	43.6018943786621
2010	42.1800956726074
2011	44.6009407043457
2012	45.5399055480957
2013	45.5399055480957
2014	48.2758636474609
2015	45.8128089904785
2016	46.305419921875
2017	43.8423652648926
2018	40.7766990661621
2019	43.961353302002
2020	46.8599052429199
2021	49.7584533691406
2022	51.6908226013184