condition mean min max 4 h after light 6.64081 5.55913 7.72249 8 h after light 5.573729999999999 2.7024 8.44506 12 h after light 4.939375 4.37794 5.50081 4 h after dark 5.81822 4.80797 6.82847 8 h after dark 9.341529999999999 6.26446 12.4186 12 h after dark 8.588425 7.59058 9.58627