Year	Number
1996	66.129035949707
1998	65.7753982543945
2000	63.8297882080078
2002	64.0211639404297
2003	67.1957702636719
2004	64.5320205688477
2005	59.5121955871582
2006	62.4390258789063
2007	60.6796112060547
2008	54.8543701171875
2009	55.5023918151855
2010	60.9523811340332
2011	57.8199043273926
2012	63.5071105957031
2013	67.2985763549805
2014	66.3461532592773
2015	60.476188659668
2016	57.6190490722656
2017	55.7142868041992
2018	62.8571434020996
2019	60.9523811340332
2020	60.476188659668
2021	59.0476188659668
2022	62.2641525268555