Year	Number
1996	12.5683059692383
1998	20.7650279998779
2000	31.1475410461426
2002	23.2432441711426
2003	31.3513507843018
2004	40.7960205078125
2005	23.529411315918
2006	25.8536586761475
2007	23.3009700775146
2008	27.1844654083252
2009	24.4019145965576
2010	34.9282302856445
2011	32.2274894714355
2012	32.7014236450195
2013	28.9099521636963
2014	37.5
2015	33.8095245361328
2016	24.761905670166
2017	20.9523811340332
2018	22.380952835083
2019	25.238094329834
2020	38.5714302062988
2021	42.8571434020996
2022	41.5094337463379