condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.01861136375 0.0 0.0372227275 ZT12-15 0.00727399725 0.0 0.0145479945 ZT16-19 0.09765421475 0.07485652849999999 0.120451901 ZT20-23 0.0105891675 0.0 0.021178335