condition mean min max 3 h after light 56.0948 42.1694 67.5843 6 h after light 63.61793333333333 59.5183 69.7811 9 h after light 61.534733333333335 52.7511 69.3537 12 h after light 75.2125 64.0875 82.0398 3 h after dark 60.63336666666667 55.3381 64.2929 6 h after dark 45.31986666666666 40.4862 48.3416 9 h after dark 39.7626 36.3698 42.5001 12 h after dark 27.0323 24.324 30.2805