condition mean min max ZT0-3 296.95 296.95 296.95 ZT4-7 371.3 371.3 371.3 ZT8-11 367.2 367.2 367.2 ZT12-15 350.45000000000005 350.45000000000005 350.45000000000005 ZT16-19 334.05 334.05 334.05 ZT20-23 344.3 344.3 344.3