condition mean min max ZT0-3 0.08054289449999999 0.075812318 0.08527347099999999 ZT4-7 0.30773674575 0.10193962050000001 0.5135338709999999 ZT8-11 5.90741276575 3.4457390429999997 8.3690864885 ZT12-15 14.3231372725 12.333283465000001 16.31299108 ZT16-19 10.4460634625 10.112510905 10.779616019999999 ZT20-23 9.74388141125 9.550473159 9.9372896635