condition mean min max ZT0-3 0.0141896 0.0 0.0283792 ZT4-7 0.17280944999999998 0.17280944999999998 0.17280944999999998 ZT8-11 0.11579329999999999 0.11579329999999999 0.11579329999999999 ZT12-15 0 0 0 ZT16-19 0.1428805 0.1428805 0.1428805 ZT20-23 0.0288519 0.0288519 0.0288519