condition mean min max ZT0-3 0.039046525 0.01975805 0.058335 ZT4-7 0.10000835 0.10000835 0.10000835 ZT8-11 0.01954755 0.01954755 0.01954755 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.01962325 0.01962325 0.01962325