Year	Number
1996	50
1998	49.2537307739258
2000	53.7313423156738
2002	52.7363166809082
2003	48.756217956543
2004	54.3269233703613
2005	55.769229888916
2006	57.211540222168
2007	56.25
2008	57.211540222168
2009	55.9241714477539
2010	55.4502372741699
2011	54.9295768737793
2012	55.3990592956543
2013	53.9906120300293
2014	55.6650238037109
2015	56.6502456665039
2016	56.6502456665039
2017	59.1133003234863
2018	57.7669906616211
2019	57.487922668457
2020	58.937198638916
2021	59.4202880859375
2022	59.4202880859375