condition mean min max 4 h after light 7.653525 5.98383 9.32322 8 h after light 3.7747400000000004 3.09303 4.45645 12 h after light 3.400135 3.2031 3.59717 4 h after dark 5.45097 3.59146 6.87342 8 h after dark 6.070803333333333 2.05255 9.32996 12 h after dark 5.17939 3.01234 6.57645