condition mean min max ZT0-3 5593.565 4798.355 6568.5650000000005 ZT4-7 6492.950000000001 6492.950000000001 6492.950000000001 ZT8-11 6329.705 6329.705 6329.705 ZT12-15 6390.7675 6307.335 6474.2 ZT16-19 5929.165 5929.165 5929.165 ZT20-23 4562.915 4562.915 4562.915