condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.55652 0.0 1.66956 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.18279466666666666 0.0 0.548384 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0