condition mean min max ZT0-3 0.056431949999999995 0.056431949999999995 0.056431949999999995 ZT4-7 0.0359005 0.0359005 0.0359005 ZT8-11 0.0 0.0 0.0 ZT12-15 0.03552385 0.03552385 0.03552385 ZT16-19 0.03104955 0.03104955 0.03104955 ZT20-23 0.10809629999999999 0.10809629999999999 0.10809629999999999