Year	Number
1996	60.6557388305664
1998	54.6448097229004
2000	62.2950820922852
2002	67.5675659179688
2003	67.0270233154297
2004	68.6567153930664
2005	72.0588226318359
2006	72.1951217651367
2007	77.6699066162109
2008	72.8155364990234
2009	72.7272720336914
2010	75.1196136474609
2011	74.8815155029297
2012	71.5639801025391
2013	70.6161117553711
2014	72.5961532592773
2015	71.9047622680664
2016	72.3809509277344
2017	73.3333358764648
2018	75.7142868041992
2019	79.523811340332
2020	80
2021	80.476188659668
2022	77.8301849365234