condition mean min max ZT0-3 960.55 960.55 960.55 ZT4-7 846.5 846.5 846.5 ZT8-11 866.6500000000001 866.6500000000001 866.6500000000001 ZT12-15 702.9 702.9 702.9 ZT16-19 959.9 959.9 959.9 ZT20-23 938.4 938.4 938.4