condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.013771766666666666 0.0 0.0413153 8 h after dark 0.009532866666666666 0.0 0.0285986 12 h after dark 0.0 0.0 0.0