condition mean min max ZT0-3 77.60215 77.60215 77.60215 ZT4-7 143.215 143.215 143.215 ZT8-11 32.1402 32.1402 32.1402 ZT12-15 19.59635 19.59635 19.59635 ZT16-19 3.186235 3.186235 3.186235 ZT20-23 4.03869 4.03869 4.03869