condition mean min max ZT0-3 0.14632805000000002 0.14632805000000002 0.14632805000000002 ZT4-7 0.317385 0.317385 0.317385 ZT8-11 0.11532 0.11532 0.11532 ZT12-15 9.7108e-05 9.7108e-05 9.7108e-05 ZT16-19 0.8645495 0.8645495 0.8645495 ZT20-23 0.6978625 0.6978625 0.6978625