Year	Number
1996	74.8633880615234
1998	75.4098358154297
2000	73.7704925537109
2002	71.8918914794922
2003	70.8108139038086
2004	71.1442794799805
2005	65.1960754394531
2006	66.8292694091797
2007	64.0776672363281
2008	61.1650466918945
2009	61.7224884033203
2010	62.2009582519531
2011	63.0331764221191
2012	63.9810409545898
2013	62.0853080749512
2014	52.4038467407227
2015	47.1428565979004
2016	48.0952377319336
2017	47.6190490722656
2018	45.238094329834
2019	48.5714302062988
2020	51.9047622680664
2021	53.3333320617676
2022	54.7169799804688