condition mean min max ZT0-3 435.8 435.8 435.8 ZT4-7 524.5 524.5 524.5 ZT8-11 532.0 532.0 532.0 ZT12-15 677.5 677.5 677.5 ZT16-19 620.95 620.95 620.95 ZT20-23 588.95 588.95 588.95