condition mean min max 4 h after light 2.92572 2.47634 3.3751 8 h after light 1.47386 1.19394 1.75378 12 h after light 1.9057149999999998 1.24787 2.56356 4 h after dark 8.30061 6.61067 9.99055 8 h after dark 5.937095 5.68644 6.18775 12 h after dark 4.20571 3.40765 5.00377