condition mean min max 3 h after light 253.013 232.775 281.859 6 h after light 169.278 150.453 198.001 9 h after light 93.3186 87.3966 103.074 12 h after light 32.339275 22.388 41.6146 3 h after dark 4.88926 2.50298 8.18511 6 h after dark 1.0380126666666667 0.675886 1.61771 9 h after dark 1.3584063333333334 0.576589 1.87074 12 h after dark 13.66695 13.525 13.8089