condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.04016566666666667 0.04016566666666667 0.04016566666666667 ZT12-15 0.0 0.0 0.0 ZT16-19 0.047165000000000006 0.047165000000000006 0.047165000000000006 ZT20-23 0.0 0.0 0.0