condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0171771 0.0 0.0515313 12 h after light 0.0 0.0 0.0 3 h after dark 0.0233791 0.0 0.0701373 6 h after dark 0.0 0.0 0.0 9 h after dark 0.030619366666666665 0.0 0.0918581 12 h after dark 0.019737766666666667 0.0 0.0592133