|Figure 6-1: Percentage of children ages 5-17 who spoke a language other than English at home and percentage who spoke a language other than English at home and spoke English with difficulty: Selected years, 1980-2009|
NOTE: Respondents were asked whether each child in the household spoke a language other than English at home. Those who answered "yes" were asked how well each child could speak English using the following categories: "very well," "well," "not well," and "not at all." All children who were reported to speak English less than "very well" were considered to have difficulty speaking English. Spanish-language versions of the questionnaires were available to respondents. For more information on the Long Form Decennial Census and the American Community Survey, see supplemental note 7.
SOURCE: U.S. Department of Education, Office of Special Education Programs, Individuals with Disabilities Education Act (IDEA) database, retrieved October 18, 2010, from http://www.ideadata.org/PartBdata.asp.