It depends on how many and whether the document needs to be used in Word 97-2003.

• Repeating Data Using Document Properties Content Controls and Other Mapped Content Controls (for 14 or less pieces of data)
• Mapped Content Controls by Greg Maxey, MVP (If you need more than 14)
• Repeating Data (Populating Multiple Like Fields) by Greg Maxey, MVP (other methods, including those that work in earlier versions of Word)

The following utility makes insertion of Mapped Content Controls the default. I use it regularly. Custom Content Control Insert Dialog