The pie charts demonstrate which the patron of expenditure in US people had between 1966-1996.
Overall, the expenditure of restaurants, cars, computers and furnitures have increased, while the consumption of boooks, food and as well as petrol have decreased for 30 years. Although in 1966 these things had exchanged between themselves. Noone number of pattern of percentage stayed in it old place.
In 1996 the percentage of people who had spent their money on restaurants and cars were 7% and 23% ,accordingly. By 1996 people had preferred to spend money on these things more then before and the percentage had doubled to 14% and 45% for restaurants and cars. But the number of expenditure of books and food fell to 1% and 14% from 6% and 44%, accordingly. However, by 1996 the quantity of expense for computer had risen from 1% to 10% and for petrol had dropped a little from 9% to 8%.