Year	Number
1996	59.1397857666016
1998	54.5454559326172
2000	57.4468078613281
2002	62.4338607788086
2003	65.6084671020508
2004	58.6206893920898
2005	64.8780517578125
2006	58.5365867614746
2007	66.9902877807617
2008	62.6213607788086
2009	66.0287094116211
2010	62.8571434020996
2011	63.9810409545898
2012	64.9289093017578
2013	67.2985763549805
2014	63.461540222168
2015	60
2016	61.4285697937012
2017	62.3809509277344
2018	64.7619018554688
2019	66.1904754638672
2020	65.2380981445313
2021	66.6666641235352
2022	67.9245300292969