How to get current bandwidth of firewall policy via SNMP

Sorry. According to your guidance, I couldn't find any OID returning the value of bytes collected over 1 minute. The fgFwPolStatsEntry doesn't return any unique numerical value?!

The MIB file that I downloaded from the device only interprets like this:

FgFwPolStatsEntry ::= SEQUENCE {     fgFwPolID               FnIndex,     fgFwPolPktCount         Counter32,     fgFwPolByteCount        Counter32,     fgFwPolLastUsed         DisplayString,     fgFwPolPktCountHc       Counter64,     fgFwPolByteCountHc      Counter64 }  fgFwPolID OBJECT-TYPE     SYNTAX      FnIndex     MAX-ACCESS  not-accessible     STATUS      current     DESCRIPTION          "Firewall policy ID. Only enabled policies are present in this table. Policy IDs are only unique within a virtual domain."     ::= { fgFwPolStatsEntry 1 }  fgFwPolPktCount OBJECT-TYPE     SYNTAX      Counter32     MAX-ACCESS  read-only     STATUS      current     DESCRIPTION          "Number of packets matched to policy (passed or blocked, depending on policy action). Count is from the time the policy became active."     ::= { fgFwPolStatsEntry 2 }  fgFwPolByteCount OBJECT-TYPE     SYNTAX      Counter32     MAX-ACCESS  read-only     STATUS      current     DESCRIPTION          "Number of bytes in packets matching the policy. See fgFwPolPktCount."     ::= { fgFwPolStatsEntry 3 }