How to display label on top of bar in chart control of report viewer ?

Hello,

In chart control value is getting display as follow after right clicking on label and check "Show Data Labels" :

Image may be NSFW.
Clik here to view.

I have set position Label property as "Top" even its displaying in middle as follow :

Image may be NSFW.
Clik here to view.

Can anyone please let me know how can I display this data label at top of the bar ?

Dipti Chhatrapati