PERCENT RETURNING AFTER
ONE TWO THREE
FALL ENTERED YEAR YEARS YEARS
1989 93.5 88.2 86.3
1990 93.0 86.4 84.7
1991 92.6 86.9 83.2
1992 91.3 85.7 82.4
1993 91.7 84.5 NA
1994 91.5 NA NA