Year	Number
1996	25.6830596923828
1998	37.7049179077148
2000	53.0054626464844
2002	48.6486473083496
2003	51.8918914794922
2004	54.7263679504395
2005	53.4313735961914
2006	44.3902435302734
2007	46.1165046691895
2008	51.9417457580566
2009	53.5885162353516
2010	52.1531105041504
2011	50.7108993530273
2012	55.9241714477539
2013	54.502368927002
2014	46.6346168518066
2015	39.523811340332
2016	38.0952377319336
2017	28.5714282989502
2018	24.761905670166
2019	29.5238094329834
2020	30.9523811340332
2021	26.6666660308838
2022	15.0943393707275