condition mean min max 4 h after light 62.17386666666667 36.8175 81.9565 8 h after light 11.492336666666667 3.30041 17.693 12 h after light 12.244093333333334 7.00908 18.4923 4 h after dark 33.16762 8.44916 46.251 8 h after dark 61.1872 54.1885 72.21 12 h after dark 57.3489 50.6769 68.4933