condition mean min max ZT0-3 19.7228 19.7228 19.7228 ZT4-7 107.70750000000001 107.70750000000001 107.70750000000001 ZT8-11 402.797 402.797 402.797 ZT12-15 242.754 242.754 242.754 ZT16-19 39.9941 39.9941 39.9941 ZT20-23 22.1207 22.1207 22.1207