condition mean min max ZT0-3 0.05387959875000001 0.0 0.10775919750000001 ZT4-7 1.69890048575 0.411221259 2.9865797125 ZT8-11 4.076033499999999 3.7104884719999998 4.441578528 ZT12-15 0.75032638375 0.048024606500000004 1.452628161 ZT16-19 0.011045155749999999 0.0 0.022090311499999998 ZT20-23 0.0153961595 0.0 0.030792319