condition mean min max ZT0-3 0.07183888875 0.0396404275 0.10403735 ZT4-7 0.0790823325 0.0627638455 0.09540081950000001 ZT8-11 0.0544680215 0.0293118175 0.07962422549999999 ZT12-15 7.24670354275 4.85661476 9.6367923255 ZT16-19 19.995760525 18.68786738 21.303653670000003 ZT20-23 21.519335204999997 20.238043384999997 22.800627025