condition mean min max ZT0-3 327.35 327.35 327.35 ZT4-7 478.6 478.6 478.6 ZT8-11 535.9 535.9 535.9 ZT12-15 468.95 468.95 468.95 ZT16-19 433.85 433.85 433.85 ZT20-23 373.4 373.4 373.4