Year	Number
1996	0.537634432315826
1998	0
2000	0.531914889812469
2002	2.64550256729126
2003	5.8201060295105
2004	9.85221672058105
2005	17.0731716156006
2006	17.0731716156006
2007	14.5631065368652
2008	13.1067962646484
2009	4.30622005462646
2010	5.7142858505249
2011	4.26540279388428
2012	2.84360194206238
2013	2.84360194206238
2014	8.65384578704834
2015	10
2016	12.8571424484253
2017	14.2857141494751
2018	11.4285717010498
2019	15.7142858505249
2020	15.7142858505249
2021	15.2380952835083
2022	20.2830181121826