Columbia subject headings:
High school graduates--United States--Statistics.
High schools--United States--Curricula--Statistics.
Student records--United States--Statistics.
Harvard subject headings:
High school graduates--United States--Statistics.
High schools--United States--Curricula--Statistics.
Student records--United States--Statistics.
Princeton subject headings:
High school graduates--United States--Statistics.
High schools--United States--Curricula--Statistics.
Statistics.
Student records--United States--Statistics.