--- service: h.root-servers.net metric: rcode-volume start-period: '2015-06-12T00:00:00Z' end-period: '2015-06-12T23:59:59Z' rcodes: 0: 338359239 1: 494136 16: 3 2: 55 3: 523711352 4: 707850 5: 20895 9: 2