condition mean min max 0 h after light 1.33982 1.27773 1.40191 4 h after light 1.25285 1.0798 1.4259 8 h after light 0.613268 0.421372 0.805164 4 h after dark 1.22749 1.19513 1.25985 8 h after dark 1.0537195 0.898859 1.20858 12 h after dark 1.382315 1.36709 1.39754