condition mean min max ZT0-3 482.4 482.4 482.4 ZT4-7 467.4 467.4 467.4 ZT8-11 480.45000000000005 480.45000000000005 480.45000000000005 ZT12-15 557.9 557.9 557.9 ZT16-19 527.95 527.95 527.95 ZT20-23 562.45 562.45 562.45