Year	Number
1996	38.2513656616211
1998	39.8907089233398
2000	34.9726791381836
2002	40.5405387878418
2003	40.5405387878418
2004	39.3034820556641
2005	42.6470603942871
2006	40.9756088256836
2007	50.970874786377
2008	44.1747589111328
2009	45.9330139160156
2010	43.5406684875488
2011	44.5497627258301
2012	39.3364944458008
2013	37.4407577514648
2014	30.2884616851807
2015	44.761905670166
2016	42.3809509277344
2017	40.476188659668
2018	49.0476188659668
2019	42.3809509277344
2020	51.4285697937012
2021	46.6666679382324
2022	50.9433975219727