Year	Number
1996	0.537634432315826
1998	1.06951868534088
2000	15.957447052002
2002	23.280424118042
2003	17.4603176116943
2004	9.85221672058105
2005	17.0731716156006
2006	2.92682933807373
2007	1.45631062984467
2008	1.94174754619598
2009	2.39234447479248
2010	7.14285707473755
2011	8.05687236785889
2012	18.0094795227051
2013	19.4312801361084
2014	15.384614944458
2015	15.2380952835083
2016	13.3333330154419
2017	12.380952835083
2018	11.9047622680664
2019	11.9047622680664
2020	11.9047622680664
2021	11.4285717010498
2022	7.07547187805176