condition mean min max ZT0-3 1564.95 1564.95 1564.95 ZT4-7 1301.0 1301.0 1301.0 ZT8-11 1412.5500000000002 1412.5500000000002 1412.5500000000002 ZT12-15 1354.0 1354.0 1354.0 ZT16-19 1587.65 1587.65 1587.65 ZT20-23 1524.75 1524.75 1524.75