condition mean min max 3 h after light 10.817566666666666 10.0229 11.4564 6 h after light 8.12819 7.13461 9.25831 9 h after light 7.26654 6.50812 7.87301 12 h after light 9.0296975 7.29818 12.808 3 h after dark 7.932876666666666 6.97903 9.05242 6 h after dark 6.77877 6.16814 7.31581 9 h after dark 9.35173 7.70071 10.9404 12 h after dark 12.0617 11.1682 12.9552