condition mean min max 4 h after light 37.2656 29.157 45.6803 8 h after light 16.735643333333336 5.68023 26.0848 12 h after light 8.234626666666667 4.5901 11.3902 4 h after dark 16.39928 9.27264 20.1753 8 h after dark 19.4966 13.5904 22.8776 12 h after dark 28.94973333333333 25.8482 32.504