condition mean min max ZT0-3 766.874 736.436 797.312 ZT4-7 38.05355 38.05355 38.05355 ZT8-11 2.19198 2.19198 2.19198 ZT12-15 0 0 0 ZT16-19 3.109845 3.109845 3.109845 ZT20-23 251.6275 251.6275 251.6275