Year	Number
1996	21.8579235076904
1998	25.1366119384766
2000	14.2076501846313
2002	9.18918895721436
2003	5.40540552139282
2004	6.46766185760498
2005	8.33333301544189
2006	5.36585378646851
2007	8.73786449432373
2008	8.73786449432373
2009	13.3971290588379
2010	14.3540668487549
2011	19.9052124023438
2012	22.748815536499
2013	23.6966819763184
2014	21.634614944458
2015	22.8571434020996
2016	25.238094329834
2017	25.238094329834
2018	27.1428565979004
2019	25.238094329834
2020	17.1428565979004
2021	27.1428565979004
2022	24.056604385376