Year	Number
1996	10.0502510070801
1998	13.5
2000	9.95024871826172
2002	8.95522403717041
2003	14.4278602600098
2004	10.5769233703613
2005	11.0047845840454
2006	14.3540668487549
2007	12.4401912689209
2008	11.5384616851807
2009	17.0616111755371
2010	14.2180099487305
2011	14.0845069885254
2012	14.5539903640747
2013	14.0845069885254
2014	23.0769233703613
2015	27.1428565979004
2016	27.1428565979004
2017	23.3333339691162
2018	24.2857151031494
2019	24.2857151031494
2020	26.1904754638672
2021	24.2857151031494
2022	23.5849056243896