condition mean min max 0 h after light 0.797736 0.531192 1.06428 4 h after light 0.9549715 0.757743 1.1522 8 h after light 1.811115 1.73031 1.89192 4 h after dark 1.5677750000000001 1.36178 1.77377 8 h after dark 1.2067885 0.844107 1.56947 12 h after dark 0.992887 0.636574 1.3492