--- service: j.root-servers.net start-period: '2016-10-15T00:00:00Z' end-period: '2016-10-15T23:59:59Z' metric: rcode-volume 0: 2640192488 1: 401628 2: 2073 3: 3368492458 4: 1010990 5: 1257775 6: 4117 7: 2310 8: 2281 9: 1644 10: 3709 11: 12037 12: 2207 13: 3574 14: 2222 15: 1583 16: 13