condition mean min max ZT0-3 139.594 139.594 139.594 ZT4-7 108.0424 108.0424 108.0424 ZT8-11 136.7385 136.7385 136.7385 ZT12-15 76.60985 76.60985 76.60985 ZT16-19 154.781 154.781 154.781 ZT20-23 133.6605 133.6605 133.6605