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 0.031705525 0.01355355 0.0498575 ZT16-19 1.392975e-05 1.392975e-05 1.392975e-05 ZT20-23 0.0 0.0 0.0