7. *In 1982, the average hourly earnings of private nonagricultural production workers were $7.87 per hour. By 2010, the average hourly earnings had risen to $19.04. In 2010, the CPI was 218.1, compared with 96.5 in 1982. What were the real earnings of private nonagricultural production workers in 2010 measured in 1982 dollars?