Year	Number
1996	0
1998	0
2000	0
2002	0
2003	0
2004	0
2005	0
2006	14.6341466903687
2007	19.9029121398926
2008	11.6504850387573
2009	20.0956935882568
2010	20.9523811340332
2011	18.4834117889404
2012	22.274881362915
2013	18.4834117889404
2014	15.384614944458
2015	19.5238094329834
2016	14.7619047164917
2017	17.619047164917
2018	12.8571424484253
2019	11.9047622680664
2020	12.380952835083
2021	11.9047622680664
2022	12.2641506195068