--- service: j.root-servers.net start-period: '2015-07-05T00:00:00Z' end-period: '2015-07-05T23:59:59Z' metric: rcode-volume 0: 734606713 1: 205302 2: 432 3: 946355118 4: 762 5: 650570 6: 135 7: 58 8: 47 9: 315 10: 1090 11: 144 12: 58 13: 45 14: 66 15: 186