Year	Number
1996	44
1998	55.7213935852051
2000	58.2089538574219
2002	57.2139320373535
2003	55.2238807678223
2004	56.730770111084
2005	56.25
2006	57.6923065185547
2007	57.6923065185547
2008	58.1730766296387
2009	57.8199043273926
2010	56.8720397949219
2011	56.3380279541016
2012	56.8075103759766
2013	56.3380279541016
2014	58.1280784606934
2015	58.6206893920898
2016	56.1576347351074
2017	56.6502456665039
2018	57.7669906616211
2019	59.9033813476563
2020	57.0048294067383
2021	57.487922668457
2022	58.4541053771973