condition mean min max 4 h after light 3.5985 3.55862 3.63838 8 h after light 2.42631 2.19959 2.65303 12 h after light 2.46128 2.05726 2.8653 4 h after dark 9.43458 8.66466 10.2045 8 h after dark 6.697485 6.07353 7.32144 12 h after dark 4.8869050000000005 4.65744 5.11637