condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 1.29173 1.29173 1.29173 ZT8-11 0.0 0.0 0.0 ZT12-15 2.699195 2.699195 2.699195 ZT16-19 0.0 0.0 0.0 ZT20-23 4.698005 4.698005 4.698005