condition mean min max 3 h after light 50.150733333333335 47.2385 54.5693 6 h after light 48.72136666666667 40.9135 54.2213 9 h after light 55.2611 43.2502 63.6579 12 h after light 57.893100000000004 51.907 72.891 3 h after dark 85.37583333333333 77.1299 91.0208 6 h after dark 69.97416666666666 65.8022 75.9302 9 h after dark 51.7106 49.5137 54.8705 12 h after dark 42.872 39.736 46.008