condition mean min max ZT0-3 0.8299332500000001 0.75332 0.9065465 ZT4-7 0.4512135 0.4512135 0.4512135 ZT8-11 0.3071455 0.3071455 0.3071455 ZT12-15 0 0 0 ZT16-19 0.4462665 0.4462665 0.4462665 ZT20-23 0.598095 0.598095 0.598095