ObjectVersionsHistogram map[string]uint64                `json:"objectsVersionsHistogram"`
	VersionsCount           uint64                           `json:"versionsCount"`
	DeleteMarkersCount      uint64                           `json:"deleteMarkersCount"`
	ReplicaSize             uint64                           `json:"objectReplicaTotalSize"`
	ReplicaCount            uint64                           `json:"objectReplicaCount"`

		clusterBuckets++
		clusterSize += usage.Size
		clusterObjectsCount += usage.ObjectsCount
		clusterVersionsCount += usage.VersionsCount
		clusterDeleteMarkersCount += usage.DeleteMarkersCount
		for k, v := range usage.ObjectSizesHistogram {
			clusterObjectSizesHistogram[k] += v
		}
		for k, v := range usage.ObjectVersionsHistogram {
			clusterVersionsHistogram[k] += v
		}
	}