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 0.1879105 0.0 0.375821 4 h after dark 0.0 0.0 0.0 8 h after dark 0.3959585 0.0 0.791917 12 h after dark 0.0 0.0 0.0