I think you got it in reverse. Ricky ranks 32 out of 37 in fumbling - there are 5 players who fumble LESS than Ricky (with 500+ carries). #1 on this list is the player who fumbles the most (the lowest fumbles per carry average, which means he's a fumbling machine as every nth carry he's a fumblin').
...right?
Not if the numbers quoted are correct. It says Ricky fumbles once every 55 carries, while Ronnie fumbles once every 95 carries. I.e. Ricky fumbles almost twice as often (per carry) as Ronnie.
Not the way I would have made the list, but apparently the way it is.