At the end of 2011, there were 223 coffee shops in the city of Amsterdam selling marijuana. About 1 million foreign tourists visit the shops in the Netherlands each year.
A new law passed at the end of 2011 made it illegal for tourists to purchase marijuana at the coffee shops beginning in 2013.
(Marijuana prices around the world.)
Source: Jurjen van de Pol, “Netherlands Stops Tourists Buying Marijuana in Coffee Shops,” Bloomberg BusinessWeek, December 15, 2011.