According to the International Air Transport Association (IATA), global passenger traffic numbers indicate a stronger demand for airway travel in May compared to last year. Passenger income per kilometer surpassed the same month of last year by 6.9 percent in May. International flight incomes went up 7.1 percent while domestic flight incomes have seen 6.6 percent growth. The increase in income for the first five months of 2015 was 6.5 percent for international and 6.1 percent for domestic flights. While Asia-Pacific airway traffic increased by 9.4 percent in May, the increase in Europe was 5.9 percent. Other significant regional airway traffic increases occurred in the Middle East at 14 percent, Africa at 3.9 percent and North America at 2 percent.