Year	Number
1996	73.9361724853516
1998	73.9361724853516
2000	76.7195739746094
2002	82.539680480957
2003	75.3768844604492
2004	77.6699066162109
2005	74.271842956543
2006	74.8792266845703
2007	77.7777786254883
2008	70.1923065185547
2009	70.1421813964844
2010	70.1421813964844
2011	71.0900497436523
2012	72.9857788085938
2013	68.7203826904297
2014	70.476188659668
2015	64.7619018554688
2016	68.0952377319336
2017	67.1428604125977
2018	64.6226425170898
2019	67.9245300292969
2020	66.9811325073242
2021	66.9811325073242
2022	62.7358474731445