condition mean min max 0 h after light 9.060465 8.41495 9.70598 2 h after light 0.602135 0.0 1.20427 4 h after light 1.18914 0.61073 1.76755 8 h after light 38.1027 37.8653 38.3401 12 h after light 16.2461 13.2811 19.2111 2 h after dark 18.22985 14.8014 21.6583 4 h after dark 27.6765 26.5744 28.7786 8 h after dark 22.636699999999998 18.907 26.3664 12 h after dark 9.37859 6.41608 12.3411