Year	Number
1996	83.606559753418
1998	77.5956268310547
2000	74.3169403076172
2002	75.1351318359375
2003	76.2162170410156
2004	77.1144256591797
2005	75.4901962280273
2006	71.7073135375977
2007	77.6699066162109
2008	73.3009719848633
2009	74.6411514282227
2010	75.1196136474609
2011	74.8815155029297
2012	74.8815155029297
2013	73.9336471557617
2014	72.5961532592773
2015	71.9047622680664
2016	69.523811340332
2017	67.6190490722656
2018	71.9047622680664
2019	70
2020	63.3333320617676
2021	58.0952377319336
2022	58.4905662536621