condition mean min max ZT0-3 0.10071480000000001 0.0223126 0.215152 ZT4-7 0.18805095 0.18805095 0.18805095 ZT8-11 0.17091499999999998 0.17091499999999998 0.17091499999999998 ZT12-15 0.7565462500000001 0.746639 0.7664535000000001 ZT16-19 0.425119 0.425119 0.425119 ZT20-23 0.09158820000000001 0.09158820000000001 0.09158820000000001