condition mean min max ZT0-3 0.27391736899999997 0.0 0.5478347379999999 ZT4-7 0.038082011666666665 0.0 0.07616402333333333 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.030269258000000004 0.0 0.06053851600000001 ZT20-23 0.0 0.0 0.0