condition mean min max 4 h after light 0.01214285 0.0 0.0242857 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.011728333333333334 0.0 0.035185