--- service: j.root-servers.net start-period: '2015-07-26T00:00:00Z' end-period: '2015-07-26T23:59:59Z' metric: rcode-volume 0: 858780853 1: 1336136 2: 1508 3: 1570488407 4: 2013 5: 698663 6: 245 7: 499 8: 227 9: 224 10: 1469 11: 218 12: 200 13: 165 14: 237 15: 240