condition mean min max ZT0-3 0.6520005 0.6520005 0.6520005 ZT4-7 0.23107 0.23107 0.23107 ZT8-11 0.167588 0.167588 0.167588 ZT12-15 0.7110805 0.7110805 0.7110805 ZT16-19 0.3339415 0.3339415 0.3339415 ZT20-23 0.23369700000000002 0.23369700000000002 0.23369700000000002