condition mean min max 3 h after light 8.075356666666668 7.86216 8.39526 6 h after light 11.918866666666666 11.6184 12.4822 9 h after light 16.792 14.0311 18.9233 12 h after light 18.836125 14.0899 21.8626 3 h after dark 40.5883 36.1188 43.2234 6 h after dark 38.897733333333335 38.2492 40.1135 9 h after dark 24.949733333333334 24.0273 25.4186 12 h after dark 15.558399999999999 14.7374 16.3794