condition mean min max 3 h after light 166.357 157.962 181.984 6 h after light 158.94366666666667 115.755 205.746 9 h after light 169.13066666666666 156.65 187.801 12 h after light 187.57725 160.822 222.894 3 h after dark 179.60999999999999 167.237 200.243 6 h after dark 137.30066666666667 123.485 153.254 9 h after dark 110.1547 97.7081 118.717 12 h after dark 122.1644 95.7978 148.531