condition mean min max 4 h after light 3.3869 3.19817 3.57563 8 h after light 1.9371800000000001 1.89369 1.98067 12 h after light 1.4759 1.4111 1.5407 4 h after dark 2.35086 2.26215 2.44947 8 h after dark 3.45308 3.13523 3.66245 12 h after dark 3.355663333333333 2.92833 3.68319