condition mean min max ZT0-3 0.007877166666666666 0.007877166666666666 0.007877166666666666 ZT4-7 0.047271549999999996 0.047271549999999996 0.047271549999999996 ZT8-11 0.09709954999999999 0.09709954999999999 0.09709954999999999 ZT12-15 0.09431555 0.09431555 0.09431555 ZT16-19 0.0190209 0.0190209 0.0190209 ZT20-23 0.033803 0.033803 0.033803