condition mean min max 0 h after light 18.29805 16.7494 19.8467 2 h after light 2.879745 0.0 5.75949 4 h after light 3.742665 1.9774 5.50793 8 h after light 9.228005 7.21631 11.2397 12 h after light 6.63807 5.02942 8.24672 2 h after dark 18.313850000000002 16.8255 19.8022 4 h after dark 19.4743 17.2888 21.6598 8 h after dark 24.205199999999998 21.7916 26.6188 12 h after dark 21.78185 10.8788 32.6849