Year	Number
1996	73.118278503418
1998	72.192512512207
2000	72.8723373413086
2002	74.6031723022461
2003	66.6666641235352
2004	60.0985221862793
2005	60.9756088256836
2006	55.1219520568848
2007	54.8543701171875
2008	55.8252410888672
2009	55.5023918151855
2010	54.2857131958008
2011	54.502368927002
2012	48.8151664733887
2013	46.9194297790527
2014	50
2015	54.2857131958008
2016	58.0952377319336
2017	57.1428565979004
2018	58.0952377319336
2019	55.7142868041992
2020	58.5714302062988
2021	59.0476188659668
2022	59.9056587219238