This figure was in a WSJ article this past week.
As Mark Twain said, "There are lies, damned lies and statistics!"
WSJ could be right or the article I referenced could be more accurate.
S.I. Hayakawa has a good chapter in his "Language in Thought & Action" about Reports and Inferences wherein he points out that most of what we know comes from reports by others, rather than by direct observation. The problems comes with determining which report to believe.