condition mean min max ZT0-3 1647.4 1647.4 1647.4 ZT4-7 1050.5 1050.5 1050.5 ZT8-11 931.05 931.05 931.05 ZT12-15 915.0 915.0 915.0 ZT16-19 1100.35 1100.35 1100.35 ZT20-23 1305.35 1305.35 1305.35