1 = male
2 = female

1 = AfAm
2 = AsAm
3 = Cau
4 = His
5 = natAm
6 = other

1 = Freshman
2 = Sophomore
3 = Junior
4 = Senior

1 = mostly a
2 = a and b
3 = mostly b
4 = b and c
5 = mostly c
6 = c and d
7 = mostly d
8 = d and f
9 = mostly f