[Aquarian Sports Cards]

Ostensibly the percentage should be the same as any other major star. Unfortunately I don't think we have much in the way of production numbers on say the 4 Cobb cards. You could also argue that it might be a higher percentage because it was known pretty early on by Burdick etc that it was tough, so probably less likely to have been destroyed/lost at an earlier date than most cards.

Just to make up numbers, if 100,000 Red Cobbs were produced and there are 5,000 left today I would expect that 5% of the Wagner's survived also putting the original number at somewhere around 1,000. I just pulled those numbers out of the air to illustrate the logic though. You might also have to deal with back/factory info to account for differing production runs, though the Wags all have common backs AFAIK