condition mean min max ZT0-3 10.9208 10.9208 10.9208 ZT4-7 10.011299999999999 10.011299999999999 10.011299999999999 ZT8-11 9.610705 9.610705 9.610705 ZT12-15 8.464795 8.464795 8.464795 ZT16-19 12.32475 12.32475 12.32475 ZT20-23 11.68145 11.68145 11.68145