condition mean min max ZT0-3 74.97678 74.97678 74.97678 ZT4-7 126.83517649999999 126.83517649999999 126.83517649999999 ZT8-11 148.898309 148.898309 148.898309 ZT12-15 78.82574 78.82574 78.82574 ZT16-19 79.6273915 79.6273915 79.6273915 ZT20-23 70.7515425 70.7515425 70.7515425