condition mean min max 4 h after light 7.082622000000001 6.913052 7.252192 8 h after light 10.359676 10.080792 10.63856 12 h after light 12.4186725 10.264113 14.573232 4 h after dark 35.213277 12.712729 57.713825 8 h after dark 115.8012265 27.212543 204.38991 12 h after dark 7.374922 7.374922 7.374922