Year	Number
1996	64.5161285400391
1998	76.470588684082
2000	72.8723373413086
2002	69.8412704467773
2003	68.7830657958984
2004	70.4433517456055
2005	64.8780517578125
2006	68.7804870605469
2007	62.6213607788086
2008	61.6504859924316
2009	59.8086128234863
2010	55.7142868041992
2011	55.4502372741699
2012	52.6066360473633
2013	55.9241714477539
2014	53.3653831481934
2015	53.8095245361328
2016	53.3333320617676
2017	53.3333320617676
2018	54.761905670166
2019	56.6666679382324
2020	57.1428565979004
2021	59.523811340332
2022	56.6037750244141