condition mean min max ZT0-3 0.00629665 0.0 0.01888995 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 0.01765185 0.01765185 0.01765185 ZT20-23 0.0 0.0 0.0