condition mean min max ZT0-3 703.4 703.4 703.4 ZT4-7 563.0 563.0 563.0 ZT8-11 480.4 480.4 480.4 ZT12-15 530.15 530.15 530.15 ZT16-19 588.35 588.35 588.35 ZT20-23 724.45 724.45 724.45