Vox
December 6, 2011
In many Western countries, between one quarter and one third of the population admit to having used cannabis at least once in their lives – according to the official statistics. This column provides an in-depth review of existing economic, social, and media evidence for and against legalisation. It concludes that although there is of course uncertainty surrounding the long-term implications, prohibition is not working and it is time to legalise.
Although some countries have quasi-legalised cannabis use (the Netherlands), made cannabis available for medical purposes (California), or allowed the growing of a small number of cannabis plants for personal use (Australia), in most countries – the Netherlands included – cannabis supply, distribution, and use is prohibited (Reuter 2010). Nevertheless, in 2009, between 2.8% and 4.5% of the world population aged 15-64, corresponding to between 125 million and 203 million people had used cannabis at least once in the past year (United Nations Office on Drugs and Crime 2011).
Table 1 presents cannabis use statistics for a number of countries, distinguishing between lifetime use (ever), recent use (last year) and current use (last month). The range in lifetime use is substantial from a low 21% in Sweden to a high 42% in the United States. The range in recent cannabis use is also substantial from a low 1% in Sweden to a high 14% in Italy. Finally, current use ranges from 1% in Sweden to 7% in Spain and the United States. What is also striking is the big difference between lifetime use and recent use. In the Netherlands for example 25% of the population aged 15 to 64 has ever used cannabis but only 7% has done so in the last year. Apparently, for a substantial part of the users, cannabis is not very addictive (see also Van Ours 2006 for details).
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