Year	Number
1996	66.1202163696289
1998	70.4918060302734
2000	74.8633880615234
2002	69.7297286987305
2003	72.9729766845703
2004	78.1094512939453
2005	75.9803924560547
2006	76.5853652954102
2007	73.3009719848633
2008	77.1844635009766
2009	75.5980834960938
2010	75.1196136474609
2011	74.8815155029297
2012	73.9336471557617
2013	72.0379180908203
2014	75
2015	73.8095245361328
2016	74.7619018554688
2017	73.3333358764648
2018	72.3809509277344
2019	71.4285736083984
2020	69.0476226806641
2021	68.5714263916016
2022	63.6792449951172