This is a rather old thread, so for this question it would have been better to start a new thread.

I use the numbers always as a rough indication;

Table Name The tablename

Records The number of records in the table (from internal administration).

Reserved Total space for this table.

Data The space used for the data.

Indexes The space used for the indexes.

Unused The still unused space.

Adding up all reserved spaces from all tables should account for the size of the database.

As said all numbers should be taken a a rough indication.

In most circumstances the numbers are very accurate.

Ben