condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.705015 0.705015 0.705015 ZT8-11 0.287832 0.287832 0.287832 ZT12-15 0.0 0.0 0.0 ZT16-19 0.935095 0.935095 0.935095 ZT20-23 0.0 0.0 0.0