Year	Number
1996	55.7377052307129
1998	55.7377052307129
2000	53.0054626464844
2002	44.3243255615234
2003	41.0810813903809
2004	44.2786064147949
2005	48.0392150878906
2006	45.8536567687988
2007	48.0582542419434
2008	46.1165046691895
2009	49.2822952270508
2010	46.8899536132813
2011	46.445499420166
2012	55.4502372741699
2013	54.028434753418
2014	49.519229888916
2015	49.0476188659668
2016	44.2857131958008
2017	39.523811340332
2018	39.0476188659668
2019	39.523811340332
2020	43.3333320617676
2021	39.0476188659668
2022	31.6037731170654