condition mean min max ZT0-3 0.1265475 0.11495499999999999 0.13814 ZT4-7 0.075991 0.075991 0.075991 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0 0 0