Summary statistics for fall 1980 application and registration patterns of applicants wishing to pursue full-time study in first-year places in Ontario universities are presented. The number and percent of increase of applicants are presented for 1973 through 1980 for regular applicants and year five applicants (those who were registered during the 1979-80 academic year as full-time students in year five of an Ontario secondary school). Data are also presented on application and registration ratios, and active applications and registered applicants by specific university and category (year five, regular, and total). Each applicant indicated up to three choices of universities and programs and rated the order of preference for their choices. For each university, the percentage of applicants and registrants that selected it as first, second, and third choice is indicated. The number and percentage of active applications and registered applicants by academic discipline are indicated, along with the percentage of active applications by choice preference. Information is also presented on the previous status or placement of applicants, the geographic origin of active applicants for each university, the number and percentage of year five and regular applicants and registered applicants by age and sex, the number and percentage of applicants by country of citizenship and immigration status, and applicants and registered applicants by academic discipline and sex. (SW)