Year	Number
1996	36.0655746459961
1998	22.4043712615967
2000	25.6830596923828
2002	44.3243255615234
2003	33.5135116577148
2004	25.8706474304199
2005	34.3137245178223
2006	39.0243911743164
2007	42.7184448242188
2008	39.3203887939453
2009	39.2344512939453
2010	36.3636360168457
2011	42.1800956726074
2012	36.9668235778809
2013	36.9668235778809
2014	43.75
2015	40.476188659668
2016	38.0952377319336
2017	32.8571434020996
2018	30.4761905670166
2019	34.761905670166
2020	33.8095245361328
2021	31.9047622680664
2022	21.2264156341553