condition mean min max 4 h after light 5.46978 4.37043 6.56913 8 h after light 3.11702 1.55869 4.67535 12 h after light 5.820655 5.79391 5.8474 4 h after dark 8.355443333333334 5.5501 10.1923 8 h after dark 3.28732 0.0 6.57308 12 h after dark 5.82616 0.0 9.06969