condition mean min max 4 h after light 5.194276666666666 5.14191 5.24046 8 h after light 5.2436766666666665 5.1454699999999995 5.37371 12 h after light 5.292276666666667 5.19569 5.4225900000000005 4 h after dark 5.26772 5.2177 5.36399 8 h after dark 5.245950000000001 5.0723400000000005 5.46443 12 h after dark 5.238423333333333 5.16669 5.37721