Table 1.

European coverage of cannabis potency, price and value data. Data show the number of European countries providing eligible data each within each category and year (Countries) and the median sample size for each estimate of potency or price (Sample).

	Resin potency		Herbal potency		Resin price		Herbal price		Resin value	Herbal value
	Countries	Sample	Countries	Sample	Countries	Sample	Countries	Sample	Countries	Countries
2006	15	30	15	58	13	47	13	50	9	12
2007	13	32	16	81	12	46	14	45	7	10
2008	18	35	19	100	15	56	15	58	10	14
2009	18	75	20	119	15	47	14	83	12	13
2010	19	43	21	207	15	36	15	54	12	14
2011	19	57	21	254	14	31	14	48	12	14
2012	18	38	20	249	17	46	16	39	13	16
2013	18	40	20	320	15	31	17	61	13	16
2014	17	36	20	357	14	41	17	66	10	15
2015	16	42	20	342	15	46	17	67	10	14
2016	15	42	19	329	19	43	19	65	12	15