Steve,
Thanks for your reply. No aggregated value but actual value of [PercentageAchieved].
a matrix like....
-------| 2008 | 2009 | 2010
-----------------------------
John | 89.3 | 90.2 | 78.9
Beck | 89.3 | 90.2 | 78.9
Smith | 99.3 | 50.2 | 98.9
Please let me know if it make sense
Thank again
Z