condition mean min max ZT0-3 1152.9 1152.9 1152.9 ZT4-7 2556.9 2556.9 2556.9 ZT8-11 2521.1 2521.1 2521.1 ZT12-15 2208.0 2208.0 2208.0 ZT16-19 1456.4 1456.4 1456.4 ZT20-23 1109.9 1109.9 1109.9