condition mean min max ZT0-3 2.786906666666667 2.786906666666667 2.786906666666667 ZT4-7 1.19e-08 1.19e-08 1.19e-08 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.050968000000000006 0.050968000000000006 0.050968000000000006