condition mean min max ZT0-3 4147.95 4147.95 4147.95 ZT4-7 3998.7 3998.7 3998.7 ZT8-11 4133.05 4133.05 4133.05 ZT12-15 3182.0 3182.0 3182.0 ZT16-19 2179.95 2179.95 2179.95 ZT20-23 2611.95 2611.95 2611.95