condition mean min max ZT0-3 0.07785595000000001 0.054626 0.10103535 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.026408 0.025046 0.02777 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0