Year	Number
1996	65.8291473388672
1998	67.5
2000	66.1691513061523
2002	68.1592025756836
2003	68.6567153930664
2004	62.5
2005	62.2009582519531
2006	66.0287094116211
2007	68.8995208740234
2008	69.711540222168
2009	70.6161117553711
2010	73.459716796875
2011	70.4225387573242
2012	69.0140838623047
2013	67.1361465454102
2014	75.961540222168
2015	73.8095245361328
2016	72.8571395874023
2017	70
2018	71.4285736083984
2019	73.3333358764648
2020	72.8571395874023
2021	73.8095245361328
2022	75.9433975219727