condition mean min max 4 h after light 129.17057 85.921931 172.419209 8 h after light 156.8847215 155.739878 158.029565 12 h after light 117.8203675 78.617571 157.023164 4 h after dark 56.9439445 30.661938 83.225951 8 h after dark 40.11649 29.727043 50.505937 12 h after dark 22.603436 22.603436 22.603436