condition mean min max ZT0-3 133.077874 133.077874 133.077874 ZT4-7 138.038765 138.038765 138.038765 ZT8-11 104.34796800000001 104.34796800000001 104.34796800000001 ZT12-15 124.67053 124.67053 124.67053 ZT16-19 129.672053 129.672053 129.672053 ZT20-23 124.479233 124.479233 124.479233