Year	Number
1996	80.4020080566406
1998	82
2000	83.0845794677734
2002	87.5621871948242
2003	88.059700012207
2004	82.211540222168
2005	85.1674652099609
2006	82.2966537475586
2007	81.339714050293
2008	76.9230804443359
2009	68.7203826904297
2010	68.2464447021484
2011	69.4835662841797
2012	71.3615036010742
2013	71.8309860229492
2014	76.9230804443359
2015	74.7619018554688
2016	78.5714263916016
2017	79.0476226806641
2018	77.6190490722656
2019	85.2380981445313
2020	82.3809509277344
2021	79.523811340332
2022	80.6603775024414