Year	Number
1996	73.118278503418
1998	72.192512512207
2000	69.6808547973633
2002	71.9576721191406
2003	69.8412704467773
2004	61.5763549804688
2005	59.5121955871582
2006	70.2439041137695
2007	69.9029159545898
2008	68.9320373535156
2009	68.8995208740234
2010	66.1904754638672
2011	62.0853080749512
2012	60.1895751953125
2013	61.6113739013672
2014	59.6153831481934
2015	60
2016	60
2017	62.8571434020996
2018	58.0952377319336
2019	55.7142868041992
2020	56.6666679382324
2021	42.3809509277344
2022	43.3962249755859