condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0067822 0.0 0.0135644 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.015432733333333334 0.0 0.0264718 12 h after dark 0.0 0.0 0.0