condition mean min max ZT0-3 480.75 480.75 480.75 ZT4-7 646.4 646.4 646.4 ZT8-11 761.45 761.45 761.45 ZT12-15 703.4 703.4 703.4 ZT16-19 727.9 727.9 727.9 ZT20-23 744.55 744.55 744.55