Year	Number
1996	80.1075286865234
1998	80.748664855957
2000	81.3829803466797
2002	80.4232788085938
2003	79.3650817871094
2004	74.8768463134766
2005	74.634147644043
2006	74.1463394165039
2007	70.8737869262695
2008	66.9902877807617
2009	69.8564605712891
2010	70.9523773193359
2011	70.1421813964844
2012	69.6682434082031
2013	68.7203826904297
2014	64.4230804443359
2015	68.0952377319336
2016	67.6190490722656
2017	65.7142868041992
2018	65.2380981445313
2019	63.3333320617676
2020	63.8095245361328
2021	67.1428604125977
2022	67.4528274536133