--- service: a.root-servers.net start-period: '2014-07-05T00:00:00Z' end-period: '2014-07-05T23:59:59Z' metric: rcode-volume 0: 1166820750 1: 443702 2: 711 3: 864881135 4: 7868 5: 999783 6: 797 7: 528 8: 1074 9: 1585 10: 388 11: 759 12: 464953 13: 525 14: 1353 15: 828 16: 1