condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.01059416075 0.0 0.0211883215 ZT12-15 0.01735767475 0.008281166 0.0264341835 ZT16-19 0.011427488000000001 0.0 0.022854976000000003 ZT20-23 0.0 0.0 0.0