Year	Number
1996	58.6021499633789
1998	53.4759368896484
2000	58.5106391906738
2002	46.0317459106445
2003	53.439151763916
2004	43.8423652648926
2005	42.926830291748
2006	46.3414649963379
2007	44.1747589111328
2008	47.5728149414063
2009	48.8038291931152
2010	45.238094329834
2011	49.7630348205566
2012	51.6587677001953
2013	54.028434753418
2014	53.8461532592773
2015	53.8095245361328
2016	55.238094329834
2017	53.3333320617676
2018	53.8095245361328
2019	52.8571434020996
2020	59.0476188659668
2021	62.3809509277344
2022	62.2641525268555