condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02981437525 0.0 0.0596287505 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.023088521 0.0 0.046177042