Rising incomes in China have spurred increased consumption of many services, both licit and illicit. China ceased producing licit opium after 2001. Australia is one of the few countries that produce licit opium for pharmaceuticals. Most licit prescribed users of benzodiazepines do not escalate their dose of benzodiazepines. India is the world's largest producer of licit opium for the pharmaceutical trade. Australia, France, India, Spain, and Turkey currently dominate the export market for licit opiates. Some theologians believe Pius XII explicitly excludes belief in polygenism as licit. Likewise, wine used for the Eucharist must be valid and licit. Most of the licit morphine produced is used to make codeine by methylation. This species contains small amounts of serotonin (licit tryptamine), 5-HTP, and tryptophan. The term comes from the "diverting" of the drugs from their original licit medical purpose. But, there are divergent views on whether it is licit to do so. Layla's husband dies eventually which removes the legal obstacles to a licit union. Temporary residence can become permanent if a licit means of living can be verified.