condition mean min max 3 h after light 2.8124166666666666 2.44768 3.17073 6 h after light 3.211263333333333 3.00622 3.32429 9 h after light 4.636526666666667 4.19614 4.94762 12 h after light 7.7738475000000005 6.17473 10.1332 3 h after dark 19.0579 17.2834 20.1443 6 h after dark 13.8666 11.6444 16.0511 9 h after dark 10.64043 9.68099 12.0691 12 h after dark 8.59177 8.03215 9.15139