condition mean min max ZT0-3 90.232125 90.232125 90.232125 ZT4-7 54.201917 54.201917 54.201917 ZT8-11 84.040187 84.040187 84.040187 ZT12-15 108.59892599999999 108.59892599999999 108.59892599999999 ZT16-19 130.27066050000002 130.27066050000002 130.27066050000002 ZT20-23 183.6490095 183.6490095 183.6490095