condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.00948255 0.00948255 0.00948255 ZT8-11 0.0078199 0.0078199 0.0078199 ZT12-15 0.0134625 0.0134625 0.0134625 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0042669 0.0042669 0.0042669