Few countries have comprehensive pack warnings - from the MPower report p. 54/56

From the MPower Report, the WHO Report on the Global Tobacco Epidemic, 2008 (p.54/56) (pdf format)
Warning people about the harms of tobacco use is essential and can be achieved in many ways.
This initial report on the global tobacco epidemic reviews countries' requirements for size and characteristics of health warnings on tobacco packs, which disseminate health information at no cost to government except for enforcement.