"There's a sucker born every minute"

There are somewhere around 250 people born per minute, on average, all over the world. Taking David Hannum's statement (the usual attribution to P. T. Barnum is incorrect) at his word and quite literally, allowing a liberal margin of error of 100 percent, we find that about 2 out of every 250 people, or about .8% of the general population are suckers.
If we restrict the sample population to just the United States, we find that there are currently roughly 8 people born per minute there. By the literal estimation of Hannum's statement, 1 out of every 8, or about 12.5% of the population are suckers.
Such a low prevalence of extreme gullibility in the populace is, I aver, in fact cause for celebration. Or, of course, just a warning not to take things too literally.