Year	Number
1996	16.9398899078369
1998	9.28961753845215
2000	4.37158489227295
2002	17.8378372192383
2003	27.027027130127
2004	38.3084564208984
2005	32.8431358337402
2006	38.0487823486328
2007	30.0970878601074
2008	37.8640785217285
2009	37.7990417480469
2010	33.4928245544434
2011	28.9099521636963
2012	31.2796211242676
2013	34.5971565246582
2014	37.019229888916
2015	35.238094329834
2016	36.6666679382324
2017	34.2857131958008
2018	38.5714302062988
2019	33.8095245361328
2020	36.6666679382324
2021	31.4285717010498
2022	31.6037731170654