condition mean min max 4 h after light 1.7290999999999999 1.18342 2.02851 8 h after light 2.1825833333333335 1.00153 2.82853 12 h after light 2.297693333333333 1.72007 3.10538 4 h after dark 2.990866666666667 2.31871 3.69549 8 h after dark 2.35823 2.02759 2.53922 12 h after dark 2.8326000000000002 2.66609 3.01884