condition mean min max ZT0-3 0.0182149 0.0182149 0.0182149 ZT4-7 0.0371752 0.0371752 0.0371752 ZT8-11 0.0203229 0.0203229 0.0203229 ZT12-15 0.01184155 0.01184155 0.01184155 ZT16-19 0.0205018 0.0205018 0.0205018 ZT20-23 0.0099016 0.0099016 0.0099016