condition mean min max ZT0-3 97.779 97.779 97.779 ZT4-7 201.7625 201.7625 201.7625 ZT8-11 85.71325 85.71325 85.71325 ZT12-15 71.92555 71.92555 71.92555 ZT16-19 47.176050000000004 47.176050000000004 47.176050000000004 ZT20-23 68.8449 68.8449 68.8449