condition mean min max ZT0-3 0.4508575 0.303399 0.5983160000000001 ZT4-7 0.61718 0.61718 0.61718 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.893511 0.893511 0.893511 ZT20-23 0.59907 0.59907 0.59907