condition mean min max 3 h after light 5.10703 2.31868 7.61634 6 h after light 3.42801 2.23586 4.98464 9 h after light 5.92199 3.79334 8.93797 12 h after light 4.4934975 1.4218 8.4314 3 h after dark 5.312593333333333 2.61433 7.84261 6 h after dark 4.37368 2.60481 6.77552 9 h after dark 6.187706666666667 3.96808 8.96247 12 h after dark 3.74181 3.45193 4.03169