condition mean min max ZT0-3 0.035902083333333334 0.0 0.07180416666666667 ZT4-7 0.0198707 0.0198707 0.0198707 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 0 0