condition mean min max ZT0-3 1577.4499999999998 1577.4499999999998 1577.4499999999998 ZT4-7 1782.6 1782.6 1782.6 ZT8-11 1530.95 1530.95 1530.95 ZT12-15 1524.85 1524.85 1524.85 ZT16-19 1787.1 1787.1 1787.1 ZT20-23 1630.25 1630.25 1630.25