condition mean min max 4 h after light 1.7299849999999999 1.02806 2.43191 8 h after light 3.0057549999999997 2.83491 3.1766 12 h after light 2.731655 2.69607 2.76724 4 h after dark 3.93203 3.491 4.23145 8 h after dark 2.8232133333333334 2.5593 3.24318 12 h after dark 2.58734 1.97559 2.97345