condition mean min max 4 h after light 3.855085 2.74002 4.97015 8 h after light 5.8153749999999995 5.79958 5.83117 12 h after light 7.4712250000000004 6.97602 7.96643 4 h after dark 9.417846666666668 8.5698 10.7551 8 h after dark 8.566056666666666 8.04981 9.26128 12 h after dark 5.801616666666667 5.3462 6.22696