condition mean min max 0 h after light 0.865903 0.720836 1.01097 4 h after light 0.6467665 0.440687 0.852846 8 h after light 1.0107855 0.880521 1.14105 4 h after dark 0.7812655 0.283181 1.27935 8 h after dark 1.2128685 0.993907 1.43183 12 h after dark 1.0656904999999999 0.863841 1.26754