condition mean min max 3 h after light 3.54445 3.25837 4.07219 6 h after light 3.9216633333333335 2.9679 4.63952 9 h after light 5.248893333333333 3.48916 7.61228 12 h after light 6.1369475 3.94947 8.8119 3 h after dark 9.2361 8.44893 9.98245 6 h after dark 9.780153333333333 8.46712 11.1564 9 h after dark 6.47083 5.80454 7.63774 12 h after dark 3.548425 3.23393 3.86292