condition mean min max ZT0-3 0.31566950000000005 0.288723 0.34261600000000003 ZT4-7 0.342294 0.342294 0.342294 ZT8-11 0.48933550000000003 0.48933550000000003 0.48933550000000003 ZT12-15 0 0 0 ZT16-19 1.0107275 1.0107275 1.0107275 ZT20-23 0.5803039999999999 0.5803039999999999 0.5803039999999999