condition mean min max 0 h after light 0.6495245 0.432502 0.866547 4 h after light 0.7889085 0.440687 1.13713 8 h after light 1.30429 1.14105 1.46753 4 h after dark 0.567481 0.566362 0.5686 8 h after dark 1.139485 0.8591 1.41987 12 h after dark 0.7855800000000001 0.56335 1.00781