Year	Number
1996	63.2978706359863
1998	58.5106391906738
2000	39.6825408935547
2002	68.2539672851563
2003	59.2964820861816
2004	52.9126205444336
2005	63.1067962646484
2006	65.7004852294922
2007	68.1159439086914
2008	69.2307662963867
2009	63.0331764221191
2010	65.8767776489258
2011	68.7203826904297
2012	69.1943130493164
2013	67.7725143432617
2014	68.5714263916016
2015	66.1904754638672
2016	65.7142868041992
2017	68.5714263916016
2018	67.9245300292969
2019	66.0377349853516
2020	64.1509399414063
2021	63.6792449951172
2022	59.9056587219238