condition mean min max ZT0-3 1702.4 1702.4 1702.4 ZT4-7 1380.6 1380.6 1380.6 ZT8-11 1141.85 1141.85 1141.85 ZT12-15 1004.9000000000001 1004.9000000000001 1004.9000000000001 ZT16-19 1214.35 1214.35 1214.35 ZT20-23 1560.9499999999998 1560.9499999999998 1560.9499999999998