Data and descriptive analysis of enrollment trends for colleges are presented. Statistical tables and charts indicate trends in births in the United States for 1961-1973, college enrollment by age and sex for five-year intervals between 1968 and 1988, college enrollment by type of institution for two-year intervals between 1968 and 1988, college enrollment by sex and attendance status for full-time and part-time students, total and full-time equivalent college enrollment, enrollment in grades K-8 and 9-12, and total enrollment in two-year and four-year institutions of higher education, by sex and attendance status of students and control of institutions. (SW)