Year	Number
1996	49.4623641967773
1998	46.5240631103516
2000	45.2127647399902
2002	46.0317459106445
2003	47.0899467468262
2004	50.7389144897461
2005	48.7804870605469
2006	41.9512176513672
2007	42.7184448242188
2008	58.2524261474609
2009	72.2488021850586
2010	71.4285736083984
2011	71.0900497436523
2012	63.0331764221191
2013	65.4028472900391
2014	61.0576934814453
2015	60.476188659668
2016	61.4285697937012
2017	63.3333320617676
2018	66.6666641235352
2019	66.1904754638672
2020	80
2021	78.0952377319336
2022	77.8301849365234