Set up Pivot Chart with multiple years

Hi

I am trying to work out the best way to set up a Pivot Chart using the following headings.... There are 800 students (rows)

ID, Year of Entry, Class, Level, 2001, 2002, 2003, 2004, 2005, 2006, 2007


Each Row is a unique Student, and the other data is as follows;
Year of Entry = 1998 - 2001
Class = Math, English, German etc...
Level = Honours, Advanced, Introduction

And for each of the "Year" columns (2001,2002 etc...), their could be grades such as Good, Exceeded, Outstanding, Average, No Rating.

So I think what I want to do is either have the User choose which "Year" of Grading to look at, or count how many "Good", "Exceeded" etc... for each of the "Years".

Thanks

Ronan