Year	Number
1996	9.04255294799805
1998	10.1063833236694
2000	1.58730161190033
2002	7.40740728378296
2003	4.52261304855347
2004	3.88349509239197
2005	0.485436886548996
2006	0.966183602809906
2007	7.24637699127197
2008	8.65384578704834
2009	9.95260620117188
2010	13.2701425552368
2011	16.1137447357178
2012	18.9573459625244
2013	18.0094795227051
2014	24.2857151031494
2015	21.9047622680664
2016	23.3333339691162
2017	25.238094329834
2018	22.6415100097656
2019	22.6415100097656
2020	18.3962268829346
2021	23.5849056243896
2022	24.056604385376