Controlling the Size of the Call Monitoring Database

In USER PORTAL > CALL MONITORING, I see that the there are entries going back to 2013, when we installed FreePBX and Asterisk. There’s no need for this amount of retention; is there a way for whichever database is in use to truncate data, so we have only a year back, or so? Our previous asterisk server had severe disk use issues which I am trying to prevent this time.