Year	Number
1996	78.7234039306641
1998	73.9361724853516
2000	82.0105819702148
2002	70.3703689575195
2003	82.4120635986328
2004	75.728157043457
2005	78.6407775878906
2006	80.6763305664063
2007	79.7101440429688
2008	86.538459777832
2009	73.459716796875
2010	75.8293838500977
2011	81.9905242919922
2012	83.4123229980469
2013	77.7251205444336
2014	76.6666641235352
2015	76.1904754638672
2016	79.0476226806641
2017	77.6190490722656
2018	75
2019	78.301887512207
2020	68.3962249755859
2021	73.1132049560547
2022	73.5849075317383