---
service: h.root-servers.net
metric: rcode-volume
start-period: '2016-05-18T00:00:00Z'
end-period: '2016-05-18T23:59:59Z'
rcodes:
  0: 818499622
  1: 1628944
  16: 7
  2: 184
  3: 3878472549
  4: 63
  5: 20610
  9: 13