Year	Number
2000	14.9253730773926
2002	10.945273399353
2003	5.97014904022217
2004	7.21153831481934
2005	7.17703342437744
2006	6.22009563446045
2007	9.09090900421143
2008	11.5384616851807
2009	18.0094795227051
2010	22.274881362915
2011	25.8215961456299
2012	26.7605628967285
2013	23.9436626434326
2014	26.9230766296387
2015	27.1428565979004
2016	28.0952377319336
2017	25.7142848968506
2018	27.619047164917
2019	26.1904754638672
2020	27.619047164917
2021	31.9047622680664
2022	26.8867931365967