When on in Curve Editor mode, the Key window displays the time or frame number and value to the right of each selected key. For example, 68, 40.620 (frame=68, value=40.620). In both Dope Sheet and Curve Editor modes, the statistics also appear in the numeric fields of the Key Stats toolbar (when displayed) for a single selected key only. With multiple selected keys, the displayed frame number is that of the most recently selected key, and the Value field is blank unless all selected keys have the same value.
To show selected key statistics:
The key statistics are displayed next to each key.