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 0.0 0.0 0.0 12 h after light 0.10957925 0.0 0.438317 3 h after dark 0.0 0.0 0.0 6 h after dark 0.08642899999999999 0.0 0.259287 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0