Help on top10 search with variations

Hi community,

let's say we have a online shop which is selling products which could appear in different variations - colors for example. So we have the fields productID and variation. Now I'd like to have a table showing the top10 sold productID, with all variations in the same row and their count.

productID    count   variation
-----------------------------------------------------
shirt1       532     blue (232)
                     red (300)
-----------------------------------------------------
jeans1       47      blue (35)
                     black (12)
-----------------------------------------------------
....

... and so on. The number behind the variation value is the count for this variation. The complete sorting of the list should be based on the count field so I get the top10 independent from the variation. I already tried to add the variation field to the top command which results in a different sorting-order when comparing with the top command for productID.

Is there a solution for the problem I'm facing?

Regards, Christian