Year	Number
1996	34.1708526611328
1998	36.5
2000	33.8308448791504
2002	41.2935333251953
2003	41.7910461425781
2004	38.9423065185547
2005	36.8421058654785
2006	35.4067001342773
2007	36.3636360168457
2008	41.3461532592773
2009	39.8104248046875
2010	36.4928894042969
2011	39.9061050415039
2012	43.6619720458984
2013	46.948356628418
2014	47.5961532592773
2015	46.6666679382324
2016	43.3333320617676
2017	40.476188659668
2018	40.9523811340332
2019	34.761905670166
2020	28.5714282989502
2021	29.5238094329834
2022	33.0188674926758