condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.20165 0.0 0.406948 9 h after light 0.0 0.0 0.0 12 h after light 0.05245775 0.0 0.209831 3 h after dark 0.405758 0.291222 0.463037 6 h after dark 0.0 0.0 0.0 9 h after dark 0.18366566666666667 0.0 0.340155 12 h after dark 0.0 0.0 0.0