Figure 1. Percentage of U.S. population aged 16-65 at each literacy level: 1994

NOTE: For more information on how literacy levels were defined, see Annex A of Literacy in the Information Age: Final Report of the International Adult Literacy Survey, available at: http://www.oecd.org/education/highereducationandadultlearning/41529765.pdf
Source: OECD and Statistics Canada, 2000. Literacy in the Information Age: Final Report of the International Adult Literacy Survey, pages 17-18.

Highlights from the 1994-1998 IALS Survey