Year	Number
1996	38.1909561157227
1998	41.5
2000	31.8407955169678
2002	38.3084564208984
2003	39.8009948730469
2004	39.9038467407227
2005	41.1483268737793
2006	46.8899536132813
2007	48.8038291931152
2008	50.480770111084
2009	49.7630348205566
2010	53.554500579834
2011	54.9295768737793
2012	52.1126747131348
2013	50.2347412109375
2014	57.6923065185547
2015	56.6666679382324
2016	53.3333320617676
2017	50.9523811340332
2018	50
2019	49.0476188659668
2020	44.761905670166
2021	45.7142868041992
2022	47.1698112487793