Year	Number
1996	31.9148941040039
1998	7.97872352600098
2000	15.8730154037476
2002	46.560848236084
2003	40.2010040283203
2004	43.6893196105957
2005	36.4077682495117
2006	42.9951705932617
2007	38.6473426818848
2008	39.9038467407227
2009	41.7061614990234
2010	45.0236968994141
2011	49.7630348205566
2012	50.7108993530273
2013	57.3459701538086
2014	62.3809509277344
2015	62.8571434020996
2016	61.9047622680664
2017	62.3809509277344
2018	57.0754699707031
2019	58.0188674926758
2020	53.7735862731934
2021	55.6603775024414
2022	51.886791229248