condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.05057 0.05057 0.05057 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0514705 0.0514705 0.0514705 ZT20-23 0.0 0.0 0.0