Year	Number
1996	53
1998	52.7363166809082
2000	38.8059692382813
2002	41.7910461425781
2003	39.3034820556641
2004	36.0576934814453
2005	49.519229888916
2006	55.288459777832
2007	55.288459777832
2008	56.730770111084
2009	55.9241714477539
2010	53.0805702209473
2011	52.1126747131348
2012	45.0704231262207
2013	43.1924896240234
2014	49.7536964416504
2015	50.2463035583496
2016	53.694580078125
2017	54.1871910095215
2018	52.4271850585938
2019	53.6231880187988
2020	57.0048294067383
2021	56.038646697998
2022	54.5893707275391