Year	Number
1996	38.7096786499023
1998	36.8983955383301
2000	38.8297882080078
2002	31.7460308074951
2003	25.9259262084961
2004	29.5566501617432
2005	31.2195129394531
2006	34.634147644043
2007	31.5533981323242
2008	28.6407775878906
2009	26.7942581176758
2010	31.9047622680664
2011	33.1753540039063
2012	28.9099521636963
2013	28.9099521636963
2014	24.519229888916
2015	23.3333339691162
2016	35.238094329834
2017	38.0952377319336
2018	43.8095245361328
2019	42.8571434020996
2020	39.0476188659668
2021	27.619047164917
2022	24.5283012390137