condition mean min max 4 h after light 11.604631 11.404219 11.805043 8 h after light 9.916842500000001 9.238483 10.595202 12 h after light 11.1083505 10.101741 12.11496 4 h after dark 11.3869125 11.3456 11.428225 8 h after dark 11.177392 11.177392 11.177392 12 h after dark 11.177392 11.177392 11.177392