condition mean min max ZT0-3 633.0 633.0 633.0 ZT4-7 652.8 652.8 652.8 ZT8-11 569.95 569.95 569.95 ZT12-15 520.0 520.0 520.0 ZT16-19 443.9 443.9 443.9 ZT20-23 425.65 425.65 425.65