JournalArchive Table Item Counts

Hi,

I'm planning an upgrade and am looking for some explanation on the JournalArchive table. Running the below on each of the 3 Stores:

select COUNT(*) "STR01 JournalArchive Count" from JournalArchive
select COUNT(*) "STR01 JournalArchive where BackupComplete=1" from JournalArchive where BackupComplete=1
select COUNT(*) "STR01 JournalArchive where IndexCommited=1" from JournalArchive where IndexCommited=1
select COUNT(*) "STR01 WatchFile Count" from WatchFile

returns the below:

Why are these items here and should they be getting cleared down? As I understand it (documented in http://www.symantec.com/docs/TECH66202) these items should be being purged.

This is a 9.0.5 system.

Any help greatly appreciated.