condition mean min max ZT0-3 70.006325 52.416700000000006 87.59594999999999 ZT4-7 118.07209999999999 118.07209999999999 118.07209999999999 ZT8-11 125.0005 125.0005 125.0005 ZT12-15 0 0 0 ZT16-19 131.5455 131.5455 131.5455 ZT20-23 114.309 114.309 114.309