condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.002412863 0.0 0.004825726 ZT12-15 0.0 0.0 0.0 ZT16-19 0.013571958500000002 0.0 0.027143917000000004 ZT20-23 0.0038531359999999996 0.0 0.007706271999999999