Year	Number
1996	52.1276588439941
1998	54.7872352600098
2000	57.6719589233398
2002	51.8518524169922
2003	55.2763824462891
2004	55.8252410888672
2005	41.7475738525391
2006	40.5797119140625
2007	39.613525390625
2008	39.4230766296387
2009	40.2843589782715
2010	45.0236968994141
2011	40.7582931518555
2012	45.497631072998
2013	43.1279602050781
2014	59.0476188659668
2015	59.0476188659668
2016	65.2380981445313
2017	65.2380981445313
2018	64.1509399414063
2019	60.8490562438965
2020	64.6226425170898
2021	64.6226425170898
2022	65.5660400390625