condition mean min max ZT0-3 1702.6999999999998 1702.6999999999998 1702.6999999999998 ZT4-7 1457.9 1457.9 1457.9 ZT8-11 1110.65 1110.65 1110.65 ZT12-15 1106.05 1106.05 1106.05 ZT16-19 1571.6 1571.6 1571.6 ZT20-23 1860.05 1860.05 1860.05