Year	Number
1996	62.9032249450684
1998	61.4973258972168
2000	63.8297882080078
2002	73.0158767700195
2003	60.3174591064453
2004	65.0246276855469
2005	61.9512176513672
2006	53.1707305908203
2007	49.5145645141602
2008	49.5145645141602
2009	49.7607650756836
2010	42.8571434020996
2011	50.2369651794434
2012	56.8720397949219
2013	58.7677726745605
2014	62.980770111084
2015	62.8571434020996
2016	60.9523811340332
2017	57.1428565979004
2018	59.523811340332
2019	60.476188659668
2020	60
2021	62.3809509277344
2022	59.9056587219238