condition mean min max ZT0-3 0.5494755 0.4460095 0.6529415000000001 ZT4-7 0.923889 0.923889 0.923889 ZT8-11 0.7395624999999999 0.7395624999999999 0.7395624999999999 ZT12-15 0 0 0 ZT16-19 1.285065 1.285065 1.285065 ZT20-23 1.049217 1.049217 1.049217