Kannabishartsin THC-pitoisuus vaihtelee keskimäärin kahden ja 13 prosentin välillä, tosin Euroopan unionissa on havaittu eriä, ###>Since1996, Spain has been seizing the largest quantities ofcannabis, more than half the total amount seized in the EU.The United Kingdom reports a higher number of cannabisseizures but on average they involve smaller quantities.