Below chart shows the number of student enrollments in all classes in professional studies, categorized by freshman, sophomore, junior, and senior.  Each category shows data from Spring 07 & Fall 07.

Now categorize enrollment by Department and Semester.

Add enrollment at each level.

Below chart zooms in on Business enrollments by Level and Subject

Below drills down to the Instructor at the 300 Level

Drill down to see enrollments for an Instructor for Spring and Fall 07