I would get the bend table from whoever will be building the parts. From what I have seen the table depends heavily on the vendor and can vary between each machine even though they are done by the same company.
It varies with the type and temper of aluminum and what standards you are designing to. Your best bet is to get the table from the fabricator who will be building the parts. They should have one based upon their equipment and material to be used. It does vary with fabricators and equipment.
Some vendors will create their own flat pattern from your Pro/E models using their bend tables so you don't have to bother with flat pattern drawings.