Year	Number
1996	37.7049179077148
1998	26.2295074462891
2000	27.8688526153564
2002	44.3243255615234
2003	38.9189186096191
2004	40.2985076904297
2005	36.2745094299316
2006	38.5365867614746
2007	42.2330093383789
2008	41.7475738525391
2009	38.2775115966797
2010	33.0143547058105
2011	31.7535552978516
2012	36.4928894042969
2013	38.3886260986328
2014	46.1538467407227
2015	41.4285697937012
2016	39.523811340332
2017	45.238094329834
2018	49.0476188659668
2019	52.8571434020996
2020	49.523811340332
2021	43.3333320617676
2022	25.943395614624