Year	Number
1996	31.9148941040039
1998	18.6170215606689
2000	11.1111106872559
2002	21.1640205383301
2003	4.52261304855347
2004	15.5339803695679
2005	16.990291595459
2006	27.0531406402588
2007	24.6376819610596
2008	29.8076915740967
2009	25.5924167633057
2010	24.1706161499023
2011	30.3317527770996
2012	35.5450248718262
2013	36.0189590454102
2014	52.3809509277344
2015	54.2857131958008
2016	52.3809509277344
2017	46.1904754638672
2018	49.5283012390137
2019	52.8301887512207
2020	56.1320762634277
2021	55.6603775024414
2022	57.5471687316895