Year	Number
1996	45.7286415100098
1998	46
2000	40.7960205078125
2002	42.7860679626465
2003	43.7810935974121
2004	41.8269233703613
2005	44.4976081848145
2006	41.6267929077148
2007	43.5406684875488
2008	42.788459777832
2009	39.3364944458008
2010	37.4407577514648
2011	37.0892028808594
2012	36.6197166442871
2013	40.8450698852539
2014	39.9038467407227
2015	41.4285697937012
2016	36.6666679382324
2017	33.8095245361328
2018	30.9523811340332
2019	30
2020	29.5238094329834
2021	31.9047622680664
2022	38.2075462341309