condition mean min max ZT0-3 0.03181505 0.031415 0.0322151 ZT4-7 0.128944 0.128944 0.128944 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.0317078 0.0317078 0.0317078 ZT20-23 0.0 0.0 0.0