Are you looking for something like this:
I don't implement fine grain auditing, so I get no results when I run it, but I think should work for you... give it a try and let me know. Also, the NUM_ROWS returned from DBA_TABLES is only what is analyzed, not the actual row count... so, if you are needing exact results in the above query, you will need to do an ANALYZE TABLE <table> COMPUTE STATISTICS on each of your target tables before running the above....
SELECT num_rows FROM dba_tables
WHERE owner = object_schema
AND table_name = object_name
Hope this helps.
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