Year	Number
1996	37.2340431213379
1998	40.957447052002
2000	48.6772499084473
2002	33.3333320617676
2003	45.7286415100098
2004	42.2330093383789
2005	43.2038841247559
2006	50.7246360778809
2007	54.5893707275391
2008	49.038459777832
2009	45.971565246582
2010	41.2322273254395
2011	28.9099521636963
2012	27.014217376709
2013	21.8009471893311
2014	20
2015	25.238094329834
2016	16.6666660308838
2017	15.2380952835083
2018	13.2075471878052
2019	11.7924528121948
2020	9.43396186828613
2021	7.54716968536377
2022	8.01886749267578