condition mean min max ZT0-3 106.05000000000001 106.05000000000001 106.05000000000001 ZT4-7 66.4 66.4 66.4 ZT8-11 112.94999999999999 112.94999999999999 112.94999999999999 ZT12-15 86.95 86.95 86.95 ZT16-19 79.45 79.45 79.45 ZT20-23 98.25 98.25 98.25