condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.008206978666666667 0.0 0.016413957333333333 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0