condition mean min max ZT0-3 571.85 571.85 571.85 ZT4-7 345.5 345.5 345.5 ZT8-11 387.95 387.95 387.95 ZT12-15 720.65 720.65 720.65 ZT16-19 618.1 618.1 618.1 ZT20-23 449.8 449.8 449.8