NOTE: Changes in postsecondary expenditures between 2005 and 2007 resulted primarily from changes in accounting procedures.
SOURCE: U.S. Department of Education, Budget Service, unpublished tabulations. U.S. Department of Education, National Center for Education Statistics, unpublished tabulations. U.S. Office of Management and Budget, Budget of the U.S. Government, Appendix, fiscal years 1967 through 2008. National Science Foundation, Federal Funds for Research and Development, fiscal years 1965 through 2006.
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