I have found two methods.
For both alternatives, the line numbers are not associated with the lines of
the table they are associated with blank paragraphs wrapped around the table
or wrapped around the text box.
1. Place the table within a text box.
Set the "Wrapping Style" property of the text box, to in front of text.
Caution, with these properties it is possible to have text appear behind the
text box.
If the fill color of the text box is set to white it could create hidden text.
Additonally, if the table font is smaller than the document's normal or body
text then the line numbers will not align properly. It is also possible to
insert text into the text box that is external to the table.
2. You can also get line numbering for tables if the table is center or
right aligned.
The table's text wrapping property is set to around, and the table alignment
is set to right or center. You will have to set a preferred witdth for the
table.
If the table exceeds a certain width the line numbering will shift below the
table.
As in the text box solution, the line numbers are roughly accurate, only so
long as the table font is the same size as the document's normal of body font.