This is an acceleration on March, when revenuepassenger kilometers increased 2.9%.
这是3月份的一个加速，付费旅客周转量增加了2.9%。
2
Ryanair acknowledges the discrepancy between the growth in ancillary revenue and passenger numbers.
瑞安航空承认辅助收入与乘客人数增长之间的确存在差距。
3
In the United States, GDS transactions represented more than one-third of all travel supplier revenue and almost two-thirds of all airline passengerrevenue for 2008.