The stats for April will be very misleading, as the eruption of Eyjafjallajökull led to many cancellations at the airport. We'll have to wait until May to get a better perspective of what's going on.
Not only that but I think you will have most of the Easter traffic in April 2011's figures. In 2010 April was on 4th, so some of the outbounds for an Easter Break will have been in March 2010. That probably makes this March's figures even better.
And just to confuse the picture, weren't there a few short closures of the airport due to the volcano in May 2010 too?
An interesting one for anna_list to sort out....
Suzeman