https://nces.ed.gov/NAAL/lit_history.asp literacy rates https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp dramatically increase literacy rates https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp dramatically increase literacy rates https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp decreasing for decades https://nces.ed.gov/NAAL/lit_history.asp http://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp dramatically increase literacy rates https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp National Assessment of Adult Literacy (NAAL) - 120 Years ... https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp