condition mean min max ZT0-3 1446.45 1446.45 1446.45 ZT4-7 1263.7 1263.7 1263.7 ZT8-11 1077.8 1077.8 1077.8 ZT12-15 1109.0 1109.0 1109.0 ZT16-19 1493.25 1493.25 1493.25 ZT20-23 1604.95 1604.95 1604.95