condition mean min max ZT0-3 3337.65 3337.65 3337.65 ZT4-7 2211.7 2211.7 2211.7 ZT8-11 1727.0500000000002 1727.0500000000002 1727.0500000000002 ZT12-15 2343.2 2343.2 2343.2 ZT16-19 3337.75 3337.75 3337.75 ZT20-23 3513.55 3513.55 3513.55