The line graph illustrates the change of expense for 3 different in categories of food and the consumer-price index in USA from 1978 to 2009.
Overall, these four figures mentioned jumped from a similar starting point and all experienced upward trends in 3 decades, but this is more striking in Fresh fruits and vegetables, which was far more than the combination of others.
With regard to fresh fruits and vegetables, which has had the most increment, discharge surged substantially to 325,in spite of some frustrations in the process, resulting in two-fold figures of that in consumer-price index, which raised stably in these 30 years, from 75 to 210. Both extends of fresh fruits and vegetables and consumer-price index levered off 1979 to 1975 and then the former climbed more dramatically.
In terms of other factors, Sugar and sweets and carbonated drinks, which both stayed at bottom in 2009, were the top two in 1982. The figures for carbonated drinks expanded mostslightly among these four, which only was equal to a half of fresh fruits and vegetables in the end.