Year	Number
1996	44.2211036682129
1998	45
2000	42.2885589599609
2002	43.7810935974121
2003	42.7860679626465
2004	41.3461532592773
2005	38.7559814453125
2006	43.0622024536133
2007	42.1052627563477
2008	46.6346168518066
2009	51.1848335266113
2010	55.4502372741699
2011	56.8075103759766
2012	52.582160949707
2013	52.582160949707
2014	57.6923065185547
2015	50.476188659668
2016	46.6666679382324
2017	42.8571434020996
2018	42.8571434020996
2019	46.6666679382324
2020	46.1904754638672
2021	41.9047622680664
2022	43.3962249755859