condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.01757051925 0.0174274105 0.017713628000000002 ZT16-19 0.10276470425 0.01531519 0.1902142185 ZT20-23 0.19548079975 0.15982121 0.2311403895