condition mean min max ZT0-3 83.935325 78.48685 89.38380000000001 ZT4-7 148.14849999999998 148.14849999999998 148.14849999999998 ZT8-11 99.22194999999999 99.22194999999999 99.22194999999999 ZT12-15 0 0 0 ZT16-19 105.069 105.069 105.069 ZT20-23 94.82749999999999 94.82749999999999 94.82749999999999