Year	Number
1996	44.5
1998	35.8208961486816
2000	35.3233833312988
2002	34.3283576965332
2003	35.3233833312988
2004	41.3461532592773
2005	44.711540222168
2006	31.25
2007	32.6923065185547
2008	29.8076915740967
2009	31.2796211242676
2010	32.2274894714355
2011	31.4553985595703
2012	36.1502342224121
2013	37.0892028808594
2014	35.4679794311523
2015	33.9901466369629
2016	33.9901466369629
2017	34.4827575683594
2018	40.7766990661621
2019	43.4782600402832
2020	40.0966186523438
2021	39.613525390625
2022	47.3429946899414