condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.19330999999999998 0.19330999999999998 0.19330999999999998 ZT12-15 0.43934833333333334 0.43934833333333334 0.43934833333333334 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0