condition mean min max 3 h after light 3.8661658333333335 1.87938 5.91437 7 h after light 4.039211666666667 2.02261 5.6445 11 h after light 4.1410075 1.57885 6.06899 2 h after dark 3.78834175 0.996381 5.40484 6 h after dark 3.7179266666666666 1.15292 6.41227 10 h after dark 3.99877 1.33776 6.31199