OK this is not the official site and it took me a few tries to even open the page ; http://farmsubsidy.org/ES/location/0/aragon/

This shows an average. Plus whatever they receive for the crop.
From what I read Spain is one of the worst offenders for hiding the data, so maybe someone with very good spanish could locate their agricultural department website and the relevant area?
However looking into these figures if they are true I must apologies as these figures are incredibly low by what I have seen in other countries on the official sites!
Looks like the cooperatives and some companies are taking the lions share, but they should then be sharing it out to their members, shouldn't they?