condition mean min max 0 h after light 17.90835 15.3459 20.4708 2 h after light 16.4739 14.2326 18.7152 4 h after light 14.0953 11.186 17.0046 8 h after light 9.86836 9.09692 10.6398 12 h after light 10.2446 10.0518 10.4374 2 h after dark 7.49717 7.09491 7.89943 4 h after dark 7.889415 5.13023 10.6486 8 h after dark 19.593 15.9217 23.2643 12 h after dark 14.430900000000001 11.3954 17.4664