okay, i think it is a difference if a top players plays 35 tournaments, or a player like Grönefeld.
she lost few times at first round, and so 35 tournaments are less or the same numbers of matches top10 players usually has to play.
Grönefeld has 41/32 = 73 matches
Kuznetzova has 60/23 = 83 matches
Mauresmo has 67/13 = 80 matches
Davenport has 68/10 = 78 matches
Myskina has 57/21 = 78 matches
Sharapova has 56/17 = 73 matches
she will cut down her schedule if she is more successfull
but now it seems she try to go up in the rankings.
but i think it would more helpfull to work on her tennis, as playing 35 tournaments the year.