No, I don't.
On his own, Kerry's tax rate is 22.9 percent
He and his wife filed separately at least in 2003 (maybe other years) because of the Presidential race to keep her fortune off the books. It became a political issue anyway, but Kerry's separate return was just taxes paid on his Senate salary and a few other things, with no mention of the fact that he was a millionaire and wasn't taxed as such, since of course all he had to do that year was realize capital gains from his wife's investments not his. If you don't realize anything, your effective tax rate could be zero.
But combined they had an effective tax rate
below the 15% capital gains tax! That's amazing! Those crazy one percenters...