Year	Number
1996	45.226131439209
1998	42.5
2000	33.3333320617676
2002	40.2985076904297
2003	44.2786064147949
2004	36.538459777832
2005	41.1483268737793
2006	39.2344512939453
2007	35.8851661682129
2008	35.0961532592773
2009	35.0710906982422
2010	31.7535552978516
2011	38.0281677246094
2012	40.3755874633789
2013	41.7840385437012
2014	37.5
2015	36.1904754638672
2016	38.0952377319336
2017	38.5714302062988
2018	20
2019	17.1428565979004
2020	17.619047164917
2021	13.3333330154419
2022	15.5660381317139