condition mean min max ZT0-3 0.23179000000000002 0.0 0.69537 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 1.863715 1.863715 1.863715 ZT20-23 0.0 0.0 0.0