Year	Number
2002	49.2063484191895
2003	48.1481475830078
2004	43.3497543334961
2005	34.634147644043
2006	33.1707305908203
2007	30.0970878601074
2008	31.5533981323242
2009	22.4880390167236
2010	24.2857151031494
2011	22.274881362915
2012	27.014217376709
2013	27.962085723877
2014	36.0576934814453
2015	35.7142868041992
2016	34.2857131958008
2017	34.761905670166
2018	36.1904754638672
2019	40.476188659668
2020	42.8571434020996
2021	50.9523811340332
2022	46.698112487793