Year	Number
1996	49.1803283691406
1998	39.8907089233398
2000	45.3551902770996
2002	54.5945930480957
2003	48.1081085205078
2004	43.2835807800293
2005	45.5882339477539
2006	50.2439041137695
2007	52.4271850585938
2008	52.9126205444336
2009	50.7177047729492
2010	47.3684196472168
2011	52.1327018737793
2012	46.9194297790527
2013	48.3412322998047
2014	57.6923065185547
2015	52.8571434020996
2016	52.3809509277344
2017	46.1904754638672
2018	43.3333320617676
2019	47.1428565979004
2020	50.476188659668
2021	49.0476188659668
2022	35.8490562438965