condition mean min max 4 h after light 1393.694 1258.329 1559.205 8 h after light 1599.6419999999998 1560.3729999999998 1643.378 12 h after light 602.0739666666667 493.5809 732.1547 16 h after light 831.8978666666667 685.9819 1037.407 4 h after dark 1988.7906666666668 1908.401 2113.176 8 h after dark 934.6869666666666 764.1369 1024.375