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 1.1166666666666666e-10 0.0 3.35e-10 8 h after dark 2.9e-09 0.0 8.7e-09 12 h after dark 0.0 0.0 0.0