Year	Number
1996	48.4042549133301
1998	34.5744667053223
2000	51.3227500915527
2002	42.8571434020996
2003	43.2160797119141
2004	29.1262130737305
2005	31.5533981323242
2006	40.0966186523438
2007	29.468599319458
2008	24.0384616851807
2009	14.6919431686401
2010	13.2701425552368
2011	19.9052124023438
2012	14.6919431686401
2013	9.47867298126221
2014	10
2015	13.3333330154419
2016	11.9047622680664
2017	10
2018	8.96226406097412
2019	9.43396186828613
2020	7.07547187805176
2021	8.49056625366211
2022	9.90566062927246