Year	Number
1996	61.9565200805664
1998	61.4130439758301
2000	58.152172088623
2002	60.5405387878418
2003	55.1351356506348
2004	54.2288551330566
2005	52.4509811401367
2006	54.4117660522461
2007	51.9417457580566
2008	53.3980598449707
2009	54.5454559326172
2010	54.5454559326172
2011	53.554500579834
2012	52.6066360473633
2013	51.6587677001953
2014	49.519229888916
2015	48.5714302062988
2016	50
2017	53.3333320617676
2018	52.8571434020996
2019	49.523811340332
2020	42.3809509277344
2021	46.1904754638672
2022	48.113208770752