condition mean min max ZT0-3 112.18799999999999 112.18799999999999 112.18799999999999 ZT4-7 98.61824999999999 98.61824999999999 98.61824999999999 ZT8-11 125.7945 125.7945 125.7945 ZT12-15 146.5475 146.5475 146.5475 ZT16-19 151.575 151.575 151.575 ZT20-23 130.3975 130.3975 130.3975