condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.02104629525 0.0 0.0420925905 ZT12-15 0.02569052575 0.014654345 0.0367267065 ZT16-19 0.012670136 0.0 0.025340272 ZT20-23 0.0 0.0 0.0