---
service: h.root-servers.net
metric: rcode-volume
start-period: '2016-01-21T00:00:00Z'
end-period: '2016-01-21T23:59:59Z'
rcodes:
  0: 724222397
  1: 1583870
  16: 15
  2: 31
  3: 2268717277
  4: 1230970
  5: 32852
  9: 6