condition mean min max 0 h after light 7.429155 5.84278 9.01553 2 h after light 4.2764 3.41435 5.13845 4 h after light 2.49343 1.62273 3.36413 8 h after light 4.11353 3.11759 5.10947 12 h after light 6.51786 5.47701 7.55871 2 h after dark 8.516165 8.42133 8.611 4 h after dark 9.621195 9.22779 10.0146 8 h after dark 12.12105 10.8795 13.3626 12 h after dark 7.778945 6.86054 8.69735