As the following table indicates, GNP and real GNP were almost the same in 1972, but there was a $300 billion difference by mid-1975. Explain why. Describe what the numbers here suggest about...

As the following table indicates, GNP and real GNP were almost the same in 1972, but there was a $300 billion difference by mid-1975. Explain why. Describe what the numbers here suggest about conditions in the economy at the time. How do the conditions compare with conditions today?