condition mean min max 4 h after light 5.904673333333333 2.91961 7.44546 8 h after light 4.16897 1.07208 8.41439 12 h after light 5.7731200000000005 3.06563 9.1707 4 h after dark 8.811856666666667 6.60266 11.3209 8 h after dark 6.7552433333333335 4.10433 9.38182 12 h after dark 7.47354 6.69954 8.69947