condition mean min max 0 h after light 31.2273 29.1732 33.2814 4 h after light 10.25425 0.0 20.5085 8 h after light 10.3491 4.2348 16.4634 4 h after dark 42.9818 41.0196 44.944 8 h after dark 43.176500000000004 37.186 49.167 12 h after dark 20.54665 20.3204 20.7729