Year	Number
1996	25.6830596923828
1998	22.4043712615967
2000	19.1256828308105
2002	15.6756753921509
2003	14.0540542602539
2004	8.4577112197876
2005	9.80392169952393
2006	11.7073173522949
2007	12.1359224319458
2008	10.6796112060547
2009	6.22009563446045
2010	15.7894735336304
2011	15.1658763885498
2012	15.1658763885498
2013	15.1658763885498
2014	10.0961542129517
2015	7.14285707473755
2016	6.66666650772095
2017	11.9047622680664
2018	13.3333330154419
2019	10.9523811340332
2020	14.7619047164917
2021	10.9523811340332
2022	8.96226406097412