Year	Number
1996	57.9234962463379
1998	53.5519142150879
2000	49.1803283691406
2002	50.8108100891113
2003	47.5675659179688
2004	27.8606967926025
2005	56.3725471496582
2006	51.2195129394531
2007	46.6019401550293
2008	44.1747589111328
2009	40.6698570251465
2010	38.7559814453125
2011	41.7061614990234
2012	39.3364944458008
2013	40.7582931518555
2014	55.769229888916
2015	53.8095245361328
2016	55.238094329834
2017	55.238094329834
2018	51.4285697937012
2019	42.8571434020996
2020	46.6666679382324
2021	38.5714302062988
2022	36.7924537658691