--- service: a.root-servers.net start-period: '2014-07-16T00:00:00Z' end-period: '2014-07-16T23:59:59Z' metric: rcode-volume 0: 941436855 1: 283162 2: 1926 3: 1247896382 4: 11484 5: 1064048 6: 1223 7: 1042 8: 649 9: 2213 10: 1171 11: 600 12: 1586 13: 743 14: 837 15: 1057 16: 5