condition mean min max ZT0-3 349.95000000000005 349.95000000000005 349.95000000000005 ZT4-7 367.7 367.7 367.7 ZT8-11 368.6 368.6 368.6 ZT12-15 283.9 283.9 283.9 ZT16-19 294.95 294.95 294.95 ZT20-23 257.8 257.8 257.8