condition mean min max 4 h after light 54.7789 33.0077 76.5501 8 h after light 50.73065 50.373 51.0883 12 h after light 63.96295 58.7017 69.2242 4 h after dark 86.74546666666667 76.4866 96.3538 8 h after dark 90.22576666666667 86.0087 92.6344 12 h after dark 57.6039 52.5093 61.3713