Year	Number
1996	32.0652160644531
1998	27.1739139556885
2000	23.9130439758301
2002	19.4594593048096
2003	21.6216220855713
2004	19.4029846191406
2005	22.5490188598633
2006	22.0588226318359
2007	25.2427177429199
2008	23.7864074707031
2009	28.2296657562256
2010	29.1866035461426
2011	22.274881362915
2012	27.488151550293
2013	25.1184825897217
2014	18.269229888916
2015	10.9523811340332
2016	5.2380952835083
2017	5.7142858505249
2018	4.7619047164917
2019	3.80952382087708
2020	3.80952382087708
2021	1.42857146263123
2022	2.8301887512207