condition mean min max 4 h after light 21.272038333333334 6.331645 33.850609999999996 8 h after light 19.153435666666667 3.8174080000000004 44.43529 12 h after light 7.203601 3.054934 13.20452 16 h after light 8.545660333333332 3.4997519999999995 14.118789999999999 4 h after dark 8.699851 7.349981 11.08357 8 h after dark 2.1991276666666666 1.487863 3.4955519999999995