Well u can`t compare those stats.Most of the matches in a year are played on a hardcourt so obviously he will have more losses there then on clay where he plays 4-5 tourneys/year.
Yes, but at the same time Federer almost only participates in the 4 big ones on clay where all players are playing. On hardcourt Federer plays smaller tournaments where the other top players dont participate.
Even in Roland Garros Federer is from 2004-2009: 32-1 against the tour except Nadal.
36-2 including Soderling loss 2010.