condition mean min max ZT0-3 562.4 562.4 562.4 ZT4-7 473.1 473.1 473.1 ZT8-11 519.25 519.25 519.25 ZT12-15 556.05 556.05 556.05 ZT16-19 627.45 627.45 627.45 ZT20-23 722.35 722.35 722.35