Year	Number
1996	71.0382537841797
1998	71.5847015380859
2000	74.3169403076172
2002	73.5135116577148
2003	67.5675659179688
2004	68.1592025756836
2005	66.6666641235352
2006	68.7804870605469
2007	65.0485458374023
2008	66.019416809082
2009	64.1148300170898
2010	63.6363639831543
2011	63.9810409545898
2012	62.5592422485352
2013	64.4549789428711
2014	62.5
2015	60.9523811340332
2016	58.5714302062988
2017	59.523811340332
2018	57.6190490722656
2019	58.0952377319336
2020	59.0476188659668
2021	60
2022	58.4905662536621