script to get item size in EV

Hi

EV 9.0.2/10.0.3

I have the following script:

USE EnterpriseVaultDirectory

SELECT A.ArchiveName "Archive Name",

IV.IndexVolumeIdentity "Index ID",

IV.FolderName "Index Folder",

IV.OldestItemDateUTC "Oldest Sent Item",

IV.YoungestItemDateUTC "Newest Sent Item",

IV.OldestArchivedDateUTC "Item First Archived On",

IV.YoungestArchivedDateUTC "Item Last Archived On",

IV.IndexedItems "Item Count"

FROM Archive A, Root R, IndexVolume IV

WHERE IV.RootIdentity = R.RootIdentity

AND R.RootIdentity = A.RootIdentity

ORDER BY A.ArchiveName, IV.IndexVolumeIdentity

But I also need to get item sizes. Can someone please assist with modifying the query?