I wonder if is there a way looking through the  Data Usage Summary to find most used destinations? 

My parents-in-law are in a strange situation, where their account shows upload of up to 20 - 25 GB a month, with only 3 - 5 GB downloads. I suspect it's probably the online backup being a dud - they use Carbonite...

So I am trying to find out the top five or ten destinations for the connections in a period...