⟩ How many photographs are published annually in U.S. print media? Is there a declining or growing market for freelance photography or stock photography?
There is no way of knowing and no one tracks this information. There are 18,000 magazines in the U.S. published at least quarterly (and most monthly), 1,500 daily newspapers, 3,000 weekly newspapers. As far as the second question as to whether there is a growing or declining market for freelance photography--please e-mail one of my colleagues--a professor of photojournalism at Ball State University. He can probably answer this question for you as he has done a considerable amount of freelance photography in his career.