condition mean min max 4 h after light 10.106389 9.530867 10.681911 8 h after light 9.682629500000001 9.351823 10.013436 12 h after light 11.404307 9.551787 13.256827 4 h after dark 10.693757 10.350613 11.036901 8 h after dark 10.320765000000002 9.565022 11.076508 12 h after dark 11.311203 11.311203 11.311203