condition mean min max ZT0-3 0.9558765 0.679768 1.2319849999999999 ZT4-7 1.0278260000000001 1.0278260000000001 1.0278260000000001 ZT8-11 0.696035 0.696035 0.696035 ZT12-15 0 0 0 ZT16-19 1.4396635 1.4396635 1.4396635 ZT20-23 0.988858 0.988858 0.988858