Year	Number
1996	38.8297882080078
1998	34.042552947998
2000	53.439151763916
2002	57.1428565979004
2003	41.7085418701172
2004	36.4077682495117
2005	37.8640785217285
2006	35.2657012939453
2007	32.8502426147461
2008	33.6538467407227
2009	51.1848335266113
2010	45.971565246582
2011	41.2322273254395
2012	46.445499420166
2013	36.9668235778809
2014	42.8571434020996
2015	34.2857131958008
2016	31.9047622680664
2017	29.5238094329834
2018	29.2452831268311
2019	20.7547168731689
2020	31.1320762634277
2021	31.1320762634277
2022	33.9622650146484