condition mean min max 3 h after light 51.2031 45.0037 55.5715 6 h after light 44.34056666666667 42.8632 46.5875 9 h after light 39.4779 38.4191 41.535 12 h after light 37.17276666666667 30.4016 41.1517 3 h after dark 136.755 103.482 167.822 6 h after dark 50.2552 42.6078 54.5591 9 h after dark 50.260133333333336 46.7307 52.9869 12 h after dark 43.0163 41.2801 45.0847