condition mean min max ZT0-3 1187.35 1187.35 1187.35 ZT4-7 1677.3 1677.3 1677.3 ZT8-11 1587.85 1587.85 1587.85 ZT12-15 1386.2 1386.2 1386.2 ZT16-19 1204.4499999999998 1204.4499999999998 1204.4499999999998 ZT20-23 1282.9499999999998 1282.9499999999998 1282.9499999999998