condition mean min max ZT0-3 0.02193079 0.02193079 0.02193079 ZT4-7 0.00900165 0.00900165 0.00900165 ZT8-11 0.00694795 0.00694795 0.00694795 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.023553400000000002 0.023553400000000002 0.023553400000000002