condition mean min max ZT0-3 584.95 584.95 584.95 ZT4-7 562.7 562.7 562.7 ZT8-11 555.3 555.3 555.3 ZT12-15 587.95 587.95 587.95 ZT16-19 565.4 565.4 565.4 ZT20-23 553.0 553.0 553.0