condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02898185 0.02898185 0.02898185 ZT8-11 0.0320963 0.0320963 0.0320963 ZT12-15 0.0831985 0.0831985 0.0831985 ZT16-19 0.125845 0.125845 0.125845 ZT20-23 0.0 0.0 0.0