condition mean min max 0 h after light 3.355765 3.22801 3.48352 4 h after light 3.271605 3.19451 3.3487 8 h after light 3.3607449999999996 3.10276 3.61873 4 h after dark 3.5144 3.16467 3.86413 8 h after dark 3.663335 3.00198 4.32469 12 h after dark 3.449485 2.63738 4.26159