I am trying to get this formula to average the values in row I for all
individuals seen during the year 2008. The formula also acknowledges that it
should ignore any cell in row I, if it is blank. For some reason I cant seem
to get the formula to work, and I keep getting a #VALUE! error. Any
suggestions?

Thanks,

Dan

Below is the formula I originally wrote:
=SUMPRODUCT((--(YEAR('Raw Data'!$C$2:$C$3498)=2008)),('Raw
Data'!$I$2:$I5000)<0,AVERAGE('Raw Data'!$I$2: $I5000),"")