Where do the displayed Analysis group dates - Last Analyzed values come from? (4220117)

The Last Analyzed  field  at the bottom of the screen  of the Object Properties, Statistics Tab  shows Last Analyzed: not analyzed .  Where do the date in the "Last Analyzed" column  seen from the View tab  -> Explore Analysis Group  comes from column   and the Last Analyzed  field  at the bottom of the screen  of the Object Properties, Statistics Tab is column  come from?

The Last Analyzed field  at the bottom of the screen  of the Object Properties, Statistics Tab  comes from the value from column quest_spc_space_info.last_analyzed.

In version 8.0, the  Analysis Group jobs are no longer needed as Space Manager will run the Internal update repository job to collect the necessary statistics for Reorg Need .The date seen in the Last Analyzed column  seen from the View tab  -> Explore Analysis Group  comes from column quest_spc_stat.last_update. The date you see in the Last Analyzed column  from the Manage table -> Open Analysis Group comes from column dba_tables.last_analyze. The Last Analyzed field  at the bottom of the screen  of the Object Properties, Statistics Tab is column quest_spc_space_info.last_analyzed, which is populated from dba_tables.last_analyzed when you run the nightly repository job