condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.42295584300000005 0.08895869566666666 0.7569529903333334 ZT8-11 0.0 0.0 0.0 ZT12-15 0.18984479916666666 0.0 0.3796895983333333 ZT16-19 0.0 0.0 0.0 ZT20-23 0.206971339 0.0 0.413942678