condition mean min max ZT0-3 0.17706999999999998 0.0 0.35413999999999995 ZT4-7 0.44449 0.44449 0.44449 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0