I want to know the answer to the following question:
How much did Oklahoma's population decline from 1930 to 1950?
All the background I'm provided with is that "Over a twenty-year period ending in 1950, the state saw its only historical decline in population, dropping 6.9 percent as impoverished families migrated out of the state after the Dust Bowl.". Is that enough to answer the question?
Answer: yes