condition mean min max ZT0-3 0.01817445975 0.0 0.0363489195 ZT4-7 0.026497606333333337 0.0 0.05299521266666667 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0