Year	Number
1996	63.5
1998	72.6368179321289
2000	75.1243743896484
2002	73.1343307495117
2003	70.6467666625977
2004	74.038459777832
2005	71.1538467407227
2006	73.5576934814453
2007	72.1153869628906
2008	72.1153869628906
2009	70.1421813964844
2010	69.6682434082031
2011	69.9530487060547
2012	68.0751190185547
2013	66.6666641235352
2014	70.4433517456055
2015	71.9211807250977
2016	70.9359588623047
2017	70.9359588623047
2018	71.8446578979492
2019	71.9806747436523
2020	71.4975814819336
2021	70.0483093261719
2022	70.0483093261719