condition mean min max ZT0-3 9409.45 9409.45 9409.45 ZT4-7 5851.0 5851.0 5851.0 ZT8-11 5136.55 5136.55 5136.55 ZT12-15 4135.2 4135.2 4135.2 ZT16-19 4737.9 4737.9 4737.9 ZT20-23 7571.0 7571.0 7571.0