Year	Number
1996	41.5300559997559
1998	32.2404365539551
2000	34.4262313842773
2002	55.6756744384766
2003	50.8108100891113
2004	52.7363166809082
2005	50.9803924560547
2006	45.8536567687988
2007	43.2038841247559
2008	50
2009	55.0239219665527
2010	48.8038291931152
2011	51.1848335266113
2012	54.9763031005859
2013	58.7677726745605
2014	44.230770111084
2015	41.9047622680664
2016	40
2017	42.3809509277344
2018	47.1428565979004
2019	42.3809509277344
2020	39.523811340332
2021	40
2022	39.1509437561035