condition mean min max ZT0-3 353.95 353.95 353.95 ZT4-7 298.7 298.7 298.7 ZT8-11 240.9 240.9 240.9 ZT12-15 256.25 256.25 256.25 ZT16-19 271.3 271.3 271.3 ZT20-23 300.65 300.65 300.65