condition mean min max ZT0-3 0.13020220000000002 0.083513 0.1812205 ZT4-7 0.02430495 0.02430495 0.02430495 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 0.05478355 0.05478355 0.05478355