Year	Number
2004	72.1393051147461
2005	71.0784301757813
2006	55.3921585083008
2007	53.3980598449707
2008	53.3980598449707
2009	52.1531105041504
2010	50.7177047729492
2011	50.2369651794434
2012	45.0236968994141
2013	45.0236968994141
2014	41.8269233703613
2015	44.761905670166
2016	55.7142868041992
2017	56.1904754638672
2018	54.761905670166
2019	65.2380981445313
2020	68.0952377319336
2021	71.4285736083984
2022	72.1698150634766