NOTE: The historical racial/ethnic time-series were constructed using racial/ethnic enrollment data at the state level for individual grades. In some instances, enrollment data by race/ethnicity had to be imputed. Further, in some instances, the racial/ethnic enrollment data for individual grades had to be adjusted to the state total for that grade. Beginning in 2008, jurisdictions could classify students as being of two or more races. As a limited number of states classified students as being of two or more races, those students were proportioned among the other categories. For additional information see the Elementary and Secondary Enrollment section A.1 in appendix A. Race categories exclude persons of Hispanic ethnicity. Mean absolute percentage errors of selected education statistics can be found in table A-2, appendix A.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD), “State Nonfiscal Survey of Public Elementary/Secondary Education,” 1995–96 through 2008–09; and National Public Elementary and Secondary Enrollment by Race/Ethnicity Model, 1994–2008. (This figure was prepared February 2011.)