It's a bit hard to work out what exactly you're trying to do there, but maybe this is what you want. It will count the number of times each nick has said that phrase, plus the total times it was said.
Code:
on *:TEXT:You busted Rick 999 out!:#:{
  if (%DF.options != on) { return }
  inc %busts. $+ $nick
  inc %busts
  msg $chan Hey, ThanX $nick $+ , you've busted me out %busts. [ $+ [ $nick ] ] out of %busts total times!
}