--- service: h.root-servers.net metric: rcode-volume start-period: '2015-12-28T00:00:00Z' end-period: '2015-12-28T23:59:59Z' rcodes: 0: 740620449 1: 1224548 16: 19 2: 38 3: 2113732915 4: 1127289 5: 22881 9: 29