Year	Number
1996	55.1912574768066
1998	59.0163917541504
2000	59.5628433227539
2002	61.0810813903809
2003	61.0810813903809
2004	57.7114410400391
2005	53.4313735961914
2006	49.7560958862305
2007	50.970874786377
2008	50.970874786377
2009	44.4976081848145
2010	45.4545440673828
2011	45.497631072998
2012	44.0758285522461
2013	46.445499420166
2014	50
2015	49.0476188659668
2016	63.8095245361328
2017	55.238094329834
2018	54.761905670166
2019	58.0952377319336
2020	51.4285697937012
2021	46.6666679382324
2022	50.9433975219727