I want to know the answer to the following question:
In 1979, how much did the average per capita income change for Libyans?
All the background I'm provided with is that "In turn, the Libyans' standard of life greatly improved over the first decade of Gaddafi's administration, and by 1979 the average per-capita income was at $8,170, up from $40 in 1951; this was above the average of many industrialized countries like Italy and the U.K.". Is that enough to answer the question?
Answer: yes