This attribute counts the total number of frames transmitted to the
interface per egress emission priority queue since the component
has been activated. There is potientially a maximum of 4 emission
priority queues. The number of available egress queues varies
according to the value of the provisionable attribute
numberOfEmissionQs. Egress queue 0 has the lowest priority, while
egress queue 3 has the highest priority. The queue values
are only indicated when the numberOfEmissionQs is set to 4
queues.