condition mean min max 3 h after light 50.0462 43.6273 53.363 6 h after light 38.8867 35.5147 42.1763 9 h after light 40.90096666666667 37.965 45.1428 12 h after light 47.832325 44.0506 51.5604 3 h after dark 46.0889 37.7353 51.6571 6 h after dark 54.44906666666667 47.534 59.4882 9 h after dark 56.7949 47.9766 61.6695 12 h after dark 49.93685 46.953 52.9207