how to align text to each bar in the bar chart?

I want to add N value to each bar in a bar chart. Normally people move each N value manually to the bar as indicated in the attached file. is it possible to let each N value align to the top of each bar automatically no matter how I resizing chart?

THX!
Screen Shot 2014-10-08 at 00.24.05.jpg
DisplayHelpTopic "Text Markers"

You will need to append the data twice and set the second trace to text markers. You will also need to adjust the offset of the text marker.

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com