The research and knowledge management for Tobacco Control (Saranya Jaya Benjakul and Board, 2550) stated that although the number and rate of smokers in the population aged 15 and over decreased by 11.67 million people, or percentage. 30.46 in the year 2534 was 9.54 million, or 18.94 per cent in the year 2549, but considering the number and rate of smoking occasionally. Thailand found that the population aged 15 years and older are more likely to smoke occasionally rising from 1.54 percent in 2534 to 2.97 percent in the year 2549.
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