Drug Offenses in the UK by Offense Type and Country, 2004-2005 to 2012-2013

Source: 

Reitox Focal Point at Public Health England, United Kingdom Drug Situation 2013 Edition. UK Focal Point on Drugs Annual Report to the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA), Oct. 31, 2013, Table 9.1, p. 154.
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