Year	Number
2004	58.6206893920898
2005	31.2195129394531
2006	25.8536586761475
2007	19.4174766540527
2008	20.3883495330811
2009	20.5741634368896
2010	18.0952377319336
2011	18.9573459625244
2012	19.4312801361084
2013	20.8530807495117
2014	36.0576934814453
2015	37.1428565979004
2016	38.0952377319336
2017	41.4285697937012
2018	39.523811340332
2019	51.4285697937012
2020	55.238094329834
2021	58.0952377319336
2022	58.0188674926758