condition mean min max ZT0-3 787.05 787.05 787.05 ZT4-7 1290.9 1290.9 1290.9 ZT8-11 1184.65 1184.65 1184.65 ZT12-15 951.95 951.95 951.95 ZT16-19 746.3 746.3 746.3 ZT20-23 676.0 676.0 676.0