condition mean min max 3 h after light 6.3454 6.01924 6.69911 6 h after light 8.30751 7.6583 9.33416 9 h after light 7.506776666666666 7.17281 7.84444 12 h after light 7.72371 6.93682 8.3532 3 h after dark 10.19128 9.77514 10.9961 6 h after dark 9.373223333333334 8.8769 9.77174 9 h after dark 6.256056666666667 5.77368 7.03737 12 h after dark 7.28725 7.27401 7.30049