71.   More than four percent of Thais from all walks of life are already addicted to the drug that has largely replaced heroin addiction in the country.

72.   More than four percent of Thais from all walks of life are already addicted to the substance which has largely replaced heroin addiction in the country.

73.   The highest rates of heroin addiction were no longer found in developed countries, but in some developing Asian states such as Pakistan, and in Africa.