Word 97: Counting specific words

I want to count, and display (in a manner that can be cut and pasted) the total number of times the following words appear in a document

TBA
TBC
TBD
N/A

The output should look like this

This document contains
TBA x 0
TBC x 3
TBD x 1
N/A x 0

I’ve run into problems knowing how to stop the “You have reached the end of the document do you want to …..” message appearing.

Thanks

Paul