Obviously to draw any meaningful conclusions from the somewhat selective statistics given it would be helpful to know the yield on those 'seat' sales and also the percentage or actual increase in capacity over the same period.
Their quarterly and annual results will give an indication of yield performance. There was a 13% reduction in average fares in Q1, ancillary revenues up 13%
89% load factor in July 08 with 5.66M bookings, 89% load factor in July 09 with 6.73M bookings so approx. 19% growth in available capacity. Refer to annual results to assess the financial impact of any planes on the ground.