condition mean min max 0 h after light 2.7683400000000002 1.78387 3.75281 4 h after light 2.415565 2.28644 2.54469 8 h after light 2.6830049999999996 2.54222 2.82379 4 h after dark 3.07083 2.46248 3.67918 8 h after dark 5.2951049999999995 4.74361 5.8466 12 h after dark 2.90839 2.78827 3.02851