Year	Number
1996	38
1998	34.825870513916
2000	35.8208961486816
2002	41.2935333251953
2003	38.8059692382813
2004	34.6153831481934
2005	34.6153831481934
2006	39.4230766296387
2007	39.9038467407227
2008	43.269229888916
2009	36.9668235778809
2010	38.3886260986328
2011	42.2535209655762
2012	44.1314544677734
2013	44.1314544677734
2014	44.3349761962891
2015	45.8128089904785
2016	36.4532012939453
2017	36.4532012939453
2018	35.4368934631348
2019	35.7487907409668
2020	34.7826080322266
2021	35.2657012939453
2022	42.9951705932617