condition mean min max 4 h after light 3.9775 3.20411 4.75089 8 h after light 5.5596499999999995 4.87933 6.23997 12 h after light 9.57265 4.144 15.0013 4 h after dark 11.92285 10.7718 13.0739 8 h after dark 8.29382 6.36034 10.2273 12 h after dark 5.76238 4.13493 7.38983