With the above data, generate the chart below.

First select the chart, then access the dialog below from the Chart Tools for Excel 1.1 toolbar / Charts / Add Labels.
You may also access this tool by right-clicking on the chart and selecting Add Labels. The same dialog will appear.

In this example, choose these settings: In Block, and the following source range:

Although the default Above label position has been selected in this example,
you may choose other options, namely: Below, Left, Right, and Center

The labeled chart will look like this: