condition mean min max ZT0-3 604.2 604.2 604.2 ZT4-7 403.6 403.6 403.6 ZT8-11 395.04999999999995 395.04999999999995 395.04999999999995 ZT12-15 454.35 454.35 454.35 ZT16-19 515.05 515.05 515.05 ZT20-23 687.7 687.7 687.7