condition mean min max ZT0-3 0.462267 0.462267 0.462267 ZT4-7 0.29750960000000004 0.29750960000000004 0.29750960000000004 ZT8-11 0.0685158 0.0685158 0.0685158 ZT12-15 0.22094049999999998 0.22094049999999998 0.22094049999999998 ZT16-19 0.36390849999999997 0.36390849999999997 0.36390849999999997 ZT20-23 0.42581899999999995 0.42581899999999995 0.42581899999999995