condition mean min max ZT0-3 0.0127762 0.0127762 0.0127762 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.140397 0.140397 0.140397 ZT16-19 0.03075775 0.03075775 0.03075775 ZT20-23 0.0 0.0 0.0