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As is shown in the bar chart, the production of tabacco in the world shrink from 14.364 billon in 1994 to 14.2billion in 1955.According to the pie chart,smokers account for 20 percent among the world population,which brings chronic disaster for us.It costs 200 billion dollar in economy and approximate 3000 thousand person die from smoking-related disease. Confronted with this threat,people all walks of life try their best to limit cigaretts.On one hand,healthy experts warn public the threaten of smoking.On the other hand,governments set a series of laws to prohibit the production and cosume of tabaccon,increase the tax of tobacon and forbid smoking in public.More import,the whole public also take part in the governments acts. On the base of analyse above,we can predict the future tendency of tobacco confidently.With the development of economy and gradually change of lifestyle, there is no doubt that the cost tendency of cigarette,as the picture shows,will decrease.