--- service: a.root-servers.net start-period: '2014-07-08T00:00:00Z' end-period: '2014-07-08T23:59:59Z' metric: rcode-volume 0: 1395488042 1: 651685 2: 1275 3: 990425830 4: 8390 5: 1028319 6: 2013 7: 1241 8: 1353 9: 2730 10: 898 11: 972 12: 440200 13: 872 14: 1847 15: 1404 16: 21