condition mean min max 0 h after light 1.082674 0.818018 1.34733 4 h after light 0.9587669999999999 0.790414 1.12712 8 h after light 2.152155 2.06005 2.24426 4 h after dark 2.190035 2.00492 2.37515 8 h after dark 1.63581 1.528 1.74362 12 h after dark 1.10661 0.89701 1.31621