condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0656705 0.0 0.131341 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 2 h after dark 0.0 0.0 0.0 4 h after dark 0.058346 0.0 0.116692 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0