monitor Queue Tree?

anyone can help me to monitor queues tree in mikrotik version 5.24? I want to graph on CACTI, column average rate.

OID I am using is:

Internet_UP
1.3.6.1.4.1.14988.1.1.2.2.1.5.16777328

Internet_Down
1.3.6.1.4.1.14988.1.1.2.2.1.5.16777329


atte,
Richard Milla T.