I'd be very interested in seeing these stats too; one thing I know, from previous experience, is that the DAA has very little interest in cargo. When they announced their €1b expansion of DUB a few years back (part of which was T2), not a single cent was dedicated to cargo; there is an area at the far side of 34/16, which is apparently to be set aside for cargo, but in the current environment I don't think it will happen.
It would be a pity to lose sight of this; exports can contribute a lot to economic growth; I know EY and EK carry a lot of freight out of DUB, but I think it could do with a dedicated freight service and both carriers (and QR too) have significant dedicated freight fleets.
If the DAA isn't willing to take an interest in this, perhaps an experienced international cargo operator could invest in a terminal?