condition mean min max ZT0-3 66.554 66.554 66.554 ZT4-7 36.7462 36.7462 36.7462 ZT8-11 36.8842 36.8842 36.8842 ZT12-15 65.5404 65.5404 65.5404 ZT16-19 99.61285000000001 99.61285000000001 99.61285000000001 ZT20-23 91.25274999999999 91.25274999999999 91.25274999999999