This publication presents data on the University of Wisconsin (UW) System new freshman enrollment for fall 1999. Data tables include new freshman headcount information: by institution, fall 1999; by institution, fall 1989, fall 1994, and fall 1999; by resident status and institution, fall 1999; by resident status, fall 1989 to fall 1999; by gender and institution, fall 1999; by gender, fall 1989 to fall 1999; by race/ethnicity and institution, fall 1999; by race/ethnicity, fall 1989 to fall 1999; by age group, fall 1999; by age group, fall 1989 to fall 1999; by admission category and institution, fall 1999; by admission category, fall 1990 to fall 1999; by ACT composite score and institution, fall 1999; by ACT composite score, fall 1989 to fall 1999; by high school rank and institution, fall 1999; and by high school rank, fall 1989, fall 1994, and fall 1999. Appended are data tables showing new freshmen headcount enrollment by institution, fall 1972 to fall 1999, and new freshmen by average high school percentile rank and institution, fall 1976 to fall 1999. (SM)