Year	Number
1996	14.2076501846313
1998	19.6721305847168
2000	22.4043712615967
2002	36.7567558288574
2003	31.3513507843018
2004	47.7611923217773
2005	44.1176452636719
2006	47.8048782348633
2007	47.5728149414063
2008	46.6019401550293
2009	54.5454559326172
2010	54.0669860839844
2011	50.2369651794434
2012	48.8151664733887
2013	47.3933639526367
2014	55.769229888916
2015	53.3333320617676
2016	50.9523811340332
2017	56.6666679382324
2018	54.2857131958008
2019	51.9047622680664
2020	51.4285697937012
2021	52.8571434020996
2022	57.0754699707031