---
service: h.root-servers.net
metric: rcode-volume
start-period: '2016-05-31T00:00:00Z'
end-period: '2016-05-31T23:59:59Z'
rcodes:
  0: 901228157
  1: 1144623
  16: 17
  2: 9
  3: 3079085472
  4: 44
  5: 34853
  9: 22