Year	Number
1996	67.2042999267578
1998	68.4491958618164
2000	75
2002	72.4867706298828
2003	70.8994674682617
2004	66.5024642944336
2005	67.8048782348633
2006	71.2195129394531
2007	67.4757308959961
2008	64.0776672363281
2009	64.1148300170898
2010	64.2857131958008
2011	65.8767776489258
2012	62.0853080749512
2013	60.1895751953125
2014	56.730770111084
2015	57.1428565979004
2016	59.0476188659668
2017	60.476188659668
2018	60.9523811340332
2019	61.4285697937012
2020	67.1428604125977
2021	67.6190490722656
2022	68.8679275512695