condition mean min max 0 h after light 4.077785 3.85665 4.29892 4 h after light 15.2561 13.8542 16.658 8 h after light 61.7408 61.5258 61.9558 4 h after dark 5.400214999999999 4.53717 6.26326 8 h after dark 2.95283 2.46451 3.44115 12 h after dark 3.48793 3.25941 3.71645