condition mean min max 3 h after light 12.247 11.5791 13.5746 6 h after light 33.1377 30.8526 36.2672 9 h after light 88.33116666666666 84.6673 92.5208 12 h after light 101.501695 2.24778 148.465 3 h after dark 76.39703333333334 69.697 80.6567 6 h after dark 48.8218 46.5792 49.9435 9 h after dark 20.076533333333334 18.991 20.7584 12 h after dark 2.4678899999999997 2.09822 2.83756