What source do you use for the figures?
The CSO has only published up to January, while the IAA only deals with flight movements.
It's worth noting that February 2012 had 29 days, unlike February 2011. That means 3.6% is the effective break-even figure.
The news about Geneva is a bit disappointing. I know that the Winter routes from Cork haven't been finalised yet, but usually the seasonal routes remain on the route map, even when they aren't bookable.