condition mean min max 4 h after light 4.22362 3.67951 4.76773 8 h after light 3.748405 3.69531 3.8015 12 h after light 4.48069 4.19352 4.76786 4 h after dark 5.565745 4.9135 6.21799 8 h after dark 4.898925 4.74664 5.05121 12 h after dark 5.951264999999999 5.81248 6.09005