美国60年代
In 1960 a new house cost $12,700.00 and by 1969 was $15,500.00
In 1960 the average income per year was $5,315.00 and by 1969 was $8,540.00
In 1960 a gallon of gas was 25 cents and by 1969 was 35 cents
In 1960 the average cost of new car was $2,600.00 and by 1969 was $3,270.00