The given pie charts show about the spending of USA people in seven different things in 1966 and 1996.
Overall, the spending was changed in these 30 years. Some categories was decreased and some categories was increased. Food was highest in 1966 but in 1996 cars was the highest one. **There was also some limitation in this comparison.**
In 1966, food was the most spending category and it was 44%. But in 1996 it was only 14%, so it decreased very much. Petrol was 10% in 1966 and 9% in 1996, so it decreased only 1%. Furniture was 10% and then it become 8%. Books was 6% in 1966 but in 1996 it was only 1%. These categories are going down in this period.
But cars was increased a lot in 1996. In 1966 it was 23% and then it became 45%. Restaurants was 7% before and became 14% after 30 years. Computers was only 1% in 1966, but it increased to 10% in 1996. So these spending was increased and cars become the most spending in 1996. **This is the main point which can be seen clearly from the charts.**
