Year	Number
1996	21.1956520080566
1998	22.2826080322266
2000	29.8913040161133
2002	18.9189186096191
2003	30.8108100891113
2004	25.3731346130371
2005	39.2156867980957
2006	40.6862754821777
2007	39.3203887939453
2008	41.7475738525391
2009	45.4545440673828
2010	46.8899536132813
2011	48.3412322998047
2012	46.445499420166
2013	45.0236968994141
2014	41.3461532592773
2015	39.523811340332
2016	30
2017	33.3333320617676
2018	36.1904754638672
2019	34.761905670166
2020	37.1428565979004
2021	34.761905670166
2022	34.4339637756348