condition mean min max ZT0-3 1271.9 1271.9 1271.9 ZT4-7 1092.2 1092.2 1092.2 ZT8-11 1321.5 1321.5 1321.5 ZT12-15 1354.75 1354.75 1354.75 ZT16-19 1463.4 1463.4 1463.4 ZT20-23 1156.9 1156.9 1156.9