condition mean min max ZT0-3 433.25 433.25 433.25 ZT4-7 892.3 892.3 892.3 ZT8-11 993.9499999999999 993.9499999999999 993.9499999999999 ZT12-15 660.5999999999999 660.5999999999999 660.5999999999999 ZT16-19 508.34999999999997 508.34999999999997 508.34999999999997 ZT20-23 522.9 522.9 522.9