How to check the progress of statistics gathering on a table

-- Script_name          : sid_long_ops.sql
-- Description          : list the sid details for long running session like when it started when last update how much time still left.

SELECT 
opname
target,
ROUND( ( sofar / totalwork ), 4 ) * 100 Percentage_Complete,
start_time,
CEIL( time_remaining / 60 ) Max_Time_Remaining_In_Min,
FLOOR( elapsed_seconds / 60 ) Time_Spent_In_Min,
AR.sql_fulltext,
AR.parsing_schema_name,
AR.module Client_Tool
FROM v$session_longops L, v$sqlarea AR
WHERE L.sql_id = AR.sql_id
AND totalwork > 0
AND AR.users_executing > 0

AND sofar != totalwork;