The provided pie charts illustrate how spending priorities changes in America from 1966 to 1996.
As can be seen from the charts, food and cars enjoyed a widespread popularity in both years, accounting for two third of the total expenditure. Making up of 44%, the demand for food sharply declined to 14% over the course of 30 years. In contrast to food, outlay on cars doubled to 45% in 1966, propelling it to be ranked the highest position among all options.
Dining out and computers experienced a remarkable growth, with the former constituting 14% of the total spending, doubling that of the year 1966. Likewise, the year 1996 witnessed a remarkable rise in computer use, with 10% of the expense being spared for the growing demand. By contrast, spending on book is in inverse ratio to computers, dropping considerably to a mere 1% in the next 30 years. Meanwhile, furniture and petrol expenditure varied insignificantly between 8% and 10% over the period, exhibiting the least variability in the spending patterns.
In conclusion, cars and food still enjoyed an overwhelming majority in both years, moving in tandem with the growing demand for computers use and dining out while books became the least favored option.