condition mean min max 4 h after light 6.579995 4.7065 8.45349 8 h after light 2.6948749999999997 2.34718 3.04257 12 h after light 3.2904150000000003 3.06958 3.51125 4 h after dark 7.514643333333333 6.54397 8.10642 8 h after dark 8.655683333333334 6.85756 10.7116 12 h after dark 9.149513333333333 8.95321 9.50486