Table PPP-5. Potency of cannabis products at retail level, 2009 [see all tables in this series...]

Part (i) Minimum, maximum, mean, median and modal potency recorded, measured as percentage of THC content

Country		Cannabis resin							Herbal cannabis
		Sample size	Min.	Max.	Mean	Median	Mode		Sample size	Min.	Max.	Mean	Median	Mode
Belgium		276	0.3	30.2	10.6	10.2	8.0		535	0.1	37.3	9.9	10.1	10.7
Bulgaria		5	0.3	4	2.9	:	1.5		338	0.01	14.8	2.4	:	1
Czech Republic		3	7.4	31	15.9	:	:		195	0.1	20.7	8.1	:	7
Denmark		:	:	:	:	:	:		:	:	:	:	:	:
Germany	(1)	2800	:	:	:	7.4	:		6450	:	:	:	8.3	:
Estonia		20	0.2	13	4	2	1.4		113	0.2	28	8	7.9	12
Ireland		:	:	:	:	:	:		:	:	:	:	:	:
Greece		:	:	:	:	:	:		:	:	:	:	:	:
Spain		:	:	:	:	:	:		:	:	:	:	:	:
France		859	0	40	10.5	10	9		94	0	37	8.5	7	4
Italy		112	0.4	9.8	4.6	4.9	3.8		33	0.2	13	5.9	6.6	6.6
Cyprus		:	:	:	:	:	:		:	:	:	:	:	:
Latvia		:	:	:	:	:	:		:	:	:	:	:	:
Lithuania		:	:	:	:	:	:		:	:	:	:	:	:
Luxembourg		:	0.4	40.8	12.4	:	:		:	0.04	35.5	11.2	:	:
Hungary	(2)	41	0.1	10	4	1.7	:		1004	0.02	10	1.3	0.8	:
Malta		100	6.6	10.4	8.5	:	9.1		100	4.3	8.2	6.3	:	7.6
Netherlands	(3)	52	6.3	29.4	17.3	:	:		20	4.7	19.9	9.9	:	:
Austria		75	0.25	33	9.8	9.5	:		527	0.08	39	5.9	4.9	:
Poland		:	:	:	:	:	:		279	0.2	16.2	7.7	:	6
Portugal		977	0.1	29.4	7.2	6.4	6.4		100	0.1	14.4	3.8	2.8	0.1
Romania	(4)	:	2.3	5.7	3.8	:	:		:	:	:	:	:	:
Slovenia		14	0.3	12.5	6.7	6.7	:		119	0.1	23.7	7	4.8	8.9
Slovakia	(5)	64	1	27.6	8.2	10.2	:		2156	0.02	39.5	12.4	11.2	:
Finland		:	:	:	:	:	:		46	0.1	15	4.6	3.9	:
Sweden		:	:	:	:	:	:		:	:	:	:	:	:
United Kingdom		:	:	:	:	:	:		:	:	:	:	:	:
Croatia		:	:	:	:	:	:		:	:	:	:	:	:
Turkey		8564	1.1	17.3	10.0	7.8	5.4		26619	0.0	11.1	4.7	3.8	3.3
Norway		4	6	25	14	:	:		5	2	7	3.8	:	:

Notes:

 Min.= minimum potency recorded; Max. = maximum potency recorded; Mean = mean potency recorded; Median = middle potency value in the ranked data set; Mode = most frequent (typical) potency recorded. 

 The minimum ‘zero’ values represent a value greater than zero but lower than the minimum sensitivity threshold that allows a robust estimate. 

 (1) There are also data available for both sinsemilla and for other European/non-European seeded herbal cannabis: sample size=4388 and median=11.2; and sample size=2662 and median=2.1, respectively. 

 (2) THC content means free THC only (without THC acid). 

 (3) Cannabis resin refers to imported cannabis resin; herbal cannabis refers to imported herbal cannabis. There is also data available for locally-produced herbal cannabis ('nederwiet'): sample size=56; min=7.7; max=22.7 and mean=15.1.  

 (4) Data reported as mean is actually a weighted mean. There are also data available for sinsemilla: sample size=n.a.; min=1.54; max=3.59 and mean=2.27. 

 (5) Data reported as means is actually a weighted mean. 

 (6) Data refer to England and Wales only.  

Sources:

 Reitox national focal points. See also Table PPP-5 part (ii). 

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