condition mean min max 2 h after light 2.01028 0.83101 3.08792 6 h after light 1.413427 0.823802 1.98049 10 h after light 1.8649566666666666 1.3398 2.44561 14 h after light 1.677969 0.981154 1.95329 18 h after light 1.6315166666666667 1.13755 2.31397 2 h after dark 1.5931325 0.172791 3.0501