condition mean min max ZT0-3 0.027031450000000002 0.0 0.04127235 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0205263 0.0205263 0.0205263 ZT12-15 0.0113439 0.0 0.0226878 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0