condition mean min max ZT0-3 91.692367 91.692367 91.692367 ZT4-7 192.045017 192.045017 192.045017 ZT8-11 224.625388 224.625388 224.625388 ZT12-15 154.93701149999998 154.93701149999998 154.93701149999998 ZT16-19 224.8287645 224.8287645 224.8287645 ZT20-23 224.9524015 224.9524015 224.9524015