sentences:  The study estimated the Alaskan government was spending $25–30 million per year enforcing cannabis prohibition laws.The study found if the purchase of cannabis were to be taxed as a legal commodity, tax revenues would increase by about $10–20 million per year, making $35–50 million per year in funds available.In 2006, a study by Jon Gettman entitled "Marijuana Production in the United States" was published in the "Bulletin of Cannabis Reform".