Where is the "Last Data Received" stored in database?

Hi,
I developed a custom report that lists the configuration data for the connected event sources.
Customer asked me to include the "Last Data Received" information which can already be seen from the ESM interface at the "Event Source Status" window ( "Status" selection of the menu that appears by right-clicking on to the event source icon) .
Is this info stored in the postgresql database? If yes in which table/column?
Thanks.