I guess upon reading this, there will be a lot of tall women moving to the Netherlands, making the difference even bigger.
Tall women don't prefer taller men.
Well, maybe they do in principle, but it doesn't seem to affect their choice at the end of day. Most of really tall women usually go with average height men.
Hence perhaps you should limit your study to really attractive women.
Much more interesting question is what they settle on. That's what determines selection.