condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.00738275 0.00738275 0.00738275 ZT8-11 0.06742005 0.06742005 0.06742005 ZT12-15 0.0621246 0.0243989 0.0998503 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0