Year	Number
1996	38.2513656616211
1998	50.8196716308594
2000	53.0054626464844
2002	51.8918914794922
2003	54.0540542602539
2004	49.7512435913086
2005	45.5882339477539
2006	44.3902435302734
2007	50.970874786377
2008	44.6601943969727
2009	43.0622024536133
2010	43.5406684875488
2011	45.0236968994141
2012	44.0758285522461
2013	43.6018943786621
2014	44.711540222168
2015	44.2857131958008
2016	38.0952377319336
2017	39.523811340332
2018	38.0952377319336
2019	37.6190490722656
2020	40
2021	41.4285697937012
2022	43.3962249755859