Year	Number
2004	42.7860679626465
2005	48.529411315918
2006	37.073169708252
2007	33.009708404541
2008	37.8640785217285
2009	31.1004791259766
2010	36.3636360168457
2011	42.1800956726074
2012	44.0758285522461
2013	43.6018943786621
2014	26.4423084259033
2015	35.7142868041992
2016	37.6190490722656
2017	40.476188659668
2018	42.3809509277344
2019	40.9523811340332
2020	51.9047622680664
2021	45.238094329834
2022	50.4716987609863