condition mean min max ZT0-3 0.3660785 0.3660785 0.3660785 ZT4-7 0.590101 0.590101 0.590101 ZT8-11 0.25443 0.25443 0.25443 ZT12-15 0.2593485 0.2593485 0.2593485 ZT16-19 0.7752005 0.7752005 0.7752005 ZT20-23 0.5115765000000001 0.5115765000000001 0.5115765000000001