condition mean min max 4 h after light 4.6902550000000005 4.00236 5.37815 8 h after light 5.171615 4.58527 5.75796 12 h after light 4.518685 4.28583 4.75154 4 h after dark 7.019195 5.89836 8.14003 8 h after dark 5.598775 4.62089 6.57666 12 h after dark 6.176515 5.79637 6.55666