condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 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 0.50351 0.0 1.00702 4 h after dark 0.0 0.0 0.0 8 h after dark 0.2439615 0.0 0.487923 12 h after dark 0.0 0.0 0.0