condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0128043045 0.0 0.025608609 ZT8-11 0.021853366833333332 0.0 0.043706733666666664 ZT12-15 0.0 0.0 0.0 ZT16-19 0.010100477 0.0 0.020200954 ZT20-23 0.0 0.0 0.0