Year	Number
1996	24.6231155395508
1998	28.5
2000	31.8407955169678
2002	32.8358192443848
2003	43.2835807800293
2004	36.538459777832
2005	39.2344512939453
2006	34.9282302856445
2007	40.6698570251465
2008	34.6153831481934
2009	33.6492881774902
2010	30.3317527770996
2011	28.6384983062744
2012	20.6572761535645
2013	16.9014091491699
2014	18.75
2015	14.2857141494751
2016	12.8571424484253
2017	14.2857141494751
2018	15.2380952835083
2019	12.380952835083
2020	10.9523811340332
2021	11.9047622680664
2022	10.8490562438965