condition mean min max ZT0-3 1.01259 1.01259 1.01259 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 1.39692 1.39692 1.39692 ZT20-23 1.6911699999999998 1.6911699999999998 1.6911699999999998