Year	Number
1996	57.4468078613281
1998	61.1702117919922
2000	69.8412704467773
2002	73.0158767700195
2003	80.9045257568359
2004	73.7864074707031
2005	61.1650466918945
2006	48.7922706604004
2007	48.7922706604004
2008	50.961540222168
2009	52.6066360473633
2010	42.1800956726074
2011	29.3838863372803
2012	21.8009471893311
2013	18.0094795227051
2014	25.7142848968506
2015	21.9047622680664
2016	28.5714282989502
2017	25.238094329834
2018	28.7735843658447
2019	38.6792449951172
2020	39.6226425170898
2021	41.5094337463379
2022	45.7547187805176