Expenditures in public elementary and secondary education in the United States by expenditure category: 1989–90 and 2005–06
NOTE: Detail may not sum to totals because of rounding. SOURCE: U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD), "National Public Education Financial Survey (NPEFS)," fiscal year 1990, Version 1b; fiscal year 2006, Version 1a.