condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.00298482 0.00298482 0.00298482 ZT8-11 0.00380785 0.00380785 0.00380785 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0