condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.025306566333333336 0.0 0.05061313266666667 ZT8-11 0.05879945783333334 0.057699515666666666 0.05989940000000001 ZT12-15 0.0 0.0 0.0 ZT16-19 0.029793516000000003 0.0 0.059587032000000005 ZT20-23 0.0 0.0 0.0