condition mean min max ZT0-3 575.95 575.95 575.95 ZT4-7 452.4 452.4 452.4 ZT8-11 526.3499999999999 526.3499999999999 526.3499999999999 ZT12-15 655.0 655.0 655.0 ZT16-19 712.0 712.0 712.0 ZT20-23 587.25 587.25 587.25