UNODC said the latest available data cited in its annual report stated that the global seizures of these kinds of drugs more than doubled between 2010 and 2012.
It said the global number of drug users remained stable, saying that an estimated 34.4 million people took amphetamines in 2012, a figure that was topped only by cannabis users.
UNODC said more recent data have been available for opium production acreage, which jumped 36 per cent last year in Afghanistan, the world’s largest supplier.
The agency said cocaine supply from South American countries has decreased; however, consumption was increasing on the continent. (dpa/NAN)