--- service: j.root-servers.net start-period: '2016-10-22T00:00:00Z' end-period: '2016-10-22T23:59:59Z' metric: rcode-volume 0: 2672014693 1: 313980 2: 4017 3: 3889396466 4: 1592971 5: 2341683 6: 4864 7: 4074 8: 548953 9: 2697 10: 2725 11: 2729 12: 2102 13: 4516 14: 2023 15: 2586 16: 9