Year	Number
1996	63.440860748291
1998	65.7753982543945
2000	63.8297882080078
2002	59.7883605957031
2003	61.375659942627
2004	55.6650238037109
2005	57.5609741210938
2006	58.5365867614746
2007	60.1941757202148
2008	62.6213607788086
2009	69.8564605712891
2010	67.6190490722656
2011	65.4028472900391
2012	64.9289093017578
2013	64.9289093017578
2014	68.75
2015	65.2380981445313
2016	65.2380981445313
2017	61.4285697937012
2018	61.9047622680664
2019	64.7619018554688
2020	63.8095245361328
2021	59.523811340332
2022	59.9056587219238