I want to know the answer to the following question:
By what factor did direct foreign investment in Libya increase between 2003 and 2004?
All the background I'm provided with is that "In 2003, the oil industry was largely sold to private corporations, and by 2004, there was $40 billion of direct foreign investment in Libya, a sixfold rise over 2003.". Is that enough to answer the question?
Answer: yes