Year	Number
1996	43.7158470153809
1998	39.8907089233398
2000	39.3442611694336
2002	35.1351356506348
2003	37.8378372192383
2004	33.3333320617676
2005	34.3137245178223
2006	35.6097564697266
2007	36.8932037353516
2008	35.9223289489746
2009	26.7942581176758
2010	29.1866035461426
2011	22.748815536499
2012	18.9573459625244
2013	20.8530807495117
2014	14.4230766296387
2015	7.61904764175415
2016	6.1904764175415
2017	5.2380952835083
2018	1.42857146263123
2019	1.42857146263123
2020	1.42857146263123
2021	1.42857146263123
2022	1.88679242134094