Year	Number
1996	45.226131439209
1998	46.5
2000	79.6019897460938
2002	77.6119384765625
2003	78.6069641113281
2004	74.038459777832
2005	64.1148300170898
2006	68.4210510253906
2007	77.0334930419922
2008	73.5576934814453
2009	61.6113739013672
2010	63.0331764221191
2011	60.5633811950684
2012	58.2159614562988
2013	60.0938949584961
2014	49.038459777832
2015	57.1428565979004
2016	58.0952377319336
2017	60.9523811340332
2018	58.0952377319336
2019	66.6666641235352
2020	70
2021	75.7142868041992
2022	75