foreign cigarettes WHO: Plain packs for to 'go global' Smokers fume as France mulls

China alone has 40% of the world's smokers

[13] As of 2008 to 2010, tobacco is used by about 49% of men and 11% of women aged 15 or older in fourteen low-income and middle-income countries (Bangladesh, Brazil, China, Egypt, India, Mexico, Philippines, Russia, Thailand, Turkey, Ukraine, Uruguay, and Vietnam), with about 80% of this usage in the form of smoking

Hard to put a timeline on that, the official said

Thus, a complete switch from tobacco cigarettes to e-cigarettes is widely acknowledged to reduce the exposure to many carcinogens and other toxicologically relevant compounds 11,52

The effect is strongest in women who have smoked heavily for many years