condition mean min max 4 h after light 4.894724999999999 4.67495 5.1145 8 h after light 6.33009 5.37626 7.28392 12 h after light 5.522209999999999 5.0347 6.00972 4 h after dark 7.4969149999999996 6.97642 8.01741 8 h after dark 6.791065 6.33834 7.24379 12 h after dark 6.748195 6.37648 7.11991