The given pie charts present data on the comparison between the 7 varied categories’ expenses by American population in the years between 1966 and 1996.
Overall, in 1966, the expenses for food showed the highest percentage, almost half of the whole percentage, while it was the lowest for books.
As can be seen from the chart, in 1966, the proportion of payment on food stood at 44% before decreasing dramatically to 14 percent in 1996. In the same year, however, the expenses of rate for books was the lowest (6 %), and surprisingly ,in 1996, experienced a significant increase to 14%. The amount of charges for restaurants, petrol, and furniture were approximately the same, which are 10%, 7%, and 9%, respectively.
In 1966, the expense figure for cars was 23%, before experienced a substantial growth to 44%, which was the highest proportion in tht year. Unlikely, this trend for food stood at 1 percent and was steady over the period.