condition mean min max ZT0-3 0.0224826 0.0 0.0449652 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.048098312500000004 0.047294625 0.048902 ZT16-19 0.0 0.0 0.0 ZT20-23 0 0 0