--- service: a.root-servers.net start-period: '2014-07-14T00:00:00Z' end-period: '2014-07-14T23:59:59Z' metric: rcode-volume 0: 1076468353 1: 339170 2: 1328 3: 991273514 4: 7371 5: 1037073 6: 2359 7: 1265 8: 523 9: 2062 10: 564 11: 2956 12: 1505 13: 726 14: 829 15: 1099 16: 3