condition mean min max ZT0-3 94.9633 94.9522 94.9744 ZT4-7 83.6452 83.6452 83.6452 ZT8-11 161.0805 161.0805 161.0805 ZT12-15 0 0 0 ZT16-19 201.39249999999998 201.39249999999998 201.39249999999998 ZT20-23 141.90550000000002 141.90550000000002 141.90550000000002