Assuming no Nadal going back with him:
Federer- 2 in the 90s (but only 3 finals), 2 in the 80s (about 3 finals again)
Djokovic- 1 or 2 in the 90s currently, but 2 or 3 by careers end. About the same in the 80s.
Murray and Ferrer- 0 of course. Dumb to even include them.