Dr. Joseph Hiney:

It imports and exports different products. The ratio of imports to exports varies because it is a small port. In the larger ports, swings and roundabouts apply, in that they can lose one and gain another. Generally it evens out and they have a steady mix of imports and exports. In Drogheda, however, it can fluctuate quite a lot. It tends to be in the 60:40, 40:60 range.