condition mean min max 4 h after light 7.666276333333333 5.866676999999999 10.16538 8 h after light 6.269390333333333 5.710276 7.149916999999999 12 h after light 4.098661 2.149266 7.741572 16 h after light 8.367206333333332 6.288907 12.0636 4 h after dark 8.199496 7.384314999999999 8.620643 8 h after dark 4.3490329999999995 3.2573529999999997 5.117458999999999