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 0.15890200000000002 0.15890200000000002 0.15890200000000002 ZT16-19 0.201929 0.201929 0.201929 ZT20-23 0.0 0.0 0.0