condition mean min max ZT0-3 652.8 652.8 652.8 ZT4-7 699.1 699.1 699.1 ZT8-11 618.5999999999999 618.5999999999999 618.5999999999999 ZT12-15 583.95 583.95 583.95 ZT16-19 643.8 643.8 643.8 ZT20-23 630.7 630.7 630.7