Even with the oil profits before the secession of South Sudan, Sudan still faced formidable economic problems, and its growth was still a rise from a very low level of per capita output. The economy of Sudan has been steadily growing over the 2000s, and according to a World Bank report the overall growth in GDP in 2010 was 5.2 percent compared to 2009 growth of 4.2 percent. This growth was sustained even during the war in Darfur and period of southern autonomy preceding South Sudan's independence.