Year	Number
1996	65.760871887207
1998	69.0217361450195
2000	64.6739120483398
2002	54.0540542602539
2003	57.8378372192383
2004	60.6965179443359
2005	53.9215698242188
2006	54.9019622802734
2007	58.2524261474609
2008	61.6504859924316
2009	62.6794242858887
2010	64.1148300170898
2011	63.9810409545898
2012	65.4028472900391
2013	64.9289093017578
2014	67.3076934814453
2015	66.6666641235352
2016	67.6190490722656
2017	66.1904754638672
2018	68.0952377319336
2019	69.523811340332
2020	67.1428604125977
2021	55.238094329834
2022	59.9056587219238