From 2006 to 2011, population growth averaged 0.6 percent per year; since 2011, annual growth has been between 0.4 and 0.5 percent annually. Immigrants are major contributors to this trend; in 2010, 27 percent of newborns in metropolitan France had at least one foreign-born parent and another 24 percent had at least one parent born outside Europe (excluding French overseas territories).