Table II.

Adverse analytical findings (AAFs) for cannabinoids from 1998 to 2009 from the International Olympic Committee (1998–2002) and the World Anti-Doping Agency (2003–9)

Year	Specimens (n)	Total AAFs (n)	AAFs for cannabinoids (n)	AAFs for cannabinoids (%)
2009	277 771	4567	352	7.7
2008	274 615	5523	496	9.0
2007	223 888	4850	576	11.9
2006	198 143	4332	553	12.8
2005	183 337	4298	503	11.7
2004	169 187	3305	518	15.7
2003	151 210	2716	378	13.9
2002	131 373	2371	347	14.6
2001	125 701	2075	298	14.3
2000	117 314	2228	295	13.2
1999	118 259	2341	312	13.3
1998	105 250	1926	233	12.1