condition mean min max ZT0-3 0.47821833333333336 0.0 1.434655 ZT4-7 1.36561 1.36561 1.36561 ZT8-11 0.0 0.0 0.0 ZT12-15 0.7521925 0.0 1.504385 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0