RadChart multiple series in single X axis column

[lekha]

Hi all,
I have to display year in X axis . For each year there is more than 2 series(company names) and for each company their Appraisal in y Axis.
How can i implement multiple series.I tried "RadChart1.DataGroupColumn " But more than 2 companies not listing for each year..

Eg: Year: 2009 -------Comp:comp1,comp2,comp3---- Appraisal: comp1-->2,comp2-->5,comp3-->8
And for year 2010 ------Comp:comp1---- Appraisal: comp1-->2
etc...

Please reply,,,
Lekha