What fraction of population gets Food Stamps?

According to a New York Times article, dated 31 Oct 2013 ("As Cuts to Food Stamps Take Effect, More Trims to Benefits Are Expected"):

" As of this past July, the most recent month of data available, there were nearly 48 million, representing about a seventh of the American population."

The quoted one-7th of the population would convert to percentage by, dividing 1 by 7. The answer would be about 0.1428...., therefore you would multiply the answer by 10, getting 14.28 or about 14% of the population, as of this past July (2013).

URL for NYTimes article:

http://www.nytimes.com/2013/11/01/us/as-cuts-to-food-stamps-take-effect-more-trims-to-benefits-are-expected.html