anchor.diff:  AUCT,41,Devonport Naval Base,1,1,2009-03-26T01:10:02Z,9999-01-01T00:00:00Z
   AVIO,10,Aviemore,0,3,2014-09-17T10:30:00Z,2015-04-14T12:00:00Z
   AWAZ,10,Awhitu Peninsula,0,3,2010-12-13T12:00:00Z,9999-01-01T00:00:00Z
  -BB0,10,GNS Gracefield (Hutton),0,3,2003-11-11T11:00:00Z,2003-11-16T11:00:00Z
   BB0,10,"Mount Priestley, David Glacier, Antarctica",0,3,2003-11-11T11:00:00Z,2004-01-20T11:00:00Z
   BB1,10,"Mount Joyce, David Glacier, Antarctica",0,3,2003-11-12T11:00:01Z,2004-01-21T11:00:00Z
   BB2,10,"Hughes Bluff, David Glacier, Antarctica",0,3,2003-11-16T11:00:00Z,2004-01-21T11:00:00Z
  -BB4,10,GNS Gracefield (Hutton),0,3,2003-11-13T11:00:00Z,2004-01-20T11:00:00Z
   BB4,10,"Trio, David Glacier, Antarctica",0,3,2003-11-13T11:00:00Z,2004-01-20T11:00:00Z
   BBCX,10,Breaker Bay Cliff,0,3,2015-03-23T11:10:00Z,9999-01-01T00:00:00Z
   BBCX,20,Breaker Bay Cliff,0,3,2014-08-24T12:05:00Z,9999-01-01T00:00:00Z
  
positive.code: NCPT,40,North Cape,0,1,2008-12-09T17:10:01Z,9999-01-01T00:00:00Z
  NCPT,41,North Cape,1,1,2008-12-09T17:10:01Z,9999-01-01T00:00:00Z
  NEZ,10,North Egmont Visitor Centre,0,1,2010-01-25T07:00:01Z,2014-05-04T12:00:00Z
  NEZ,10,Taranaki Emergency Management Office,3,1,2002-09-19T21:38:00Z,2003-11-24T07:46:00Z
  NEZ,10,Taranaki Emergency Management Office,0,1,2003-11-24T20:07:00Z,2010-01-24T11:00:00Z
  NEZ,11,North Egmont Visitor Centre,0,3,2010-06-07T11:35:00Z,2014-05-04T12:01:00Z
  NEZ,30,North Egmont Visitor Centre,3,1,2014-03-20T11:00:02Z,9999-01-01T00:00:00Z
  NGA2,10,Mount Ngauruhoe 2006 Portable NGA2,0,3,2006-06-07T13:00:00Z,2006-10-31T09:00:00Z
  
negative.code: MED2,10,Pakarae,0,3,2005-01-17T15:56:00Z,2005-03-29T12:00:00Z
  MED3,10,Kaiaua Station,0,3,2005-01-19T09:17:00Z,2005-03-30T12:00:00Z
  MED4,10,Turihaua Station,0,3,2005-02-23T15:51:00Z,2005-03-30T12:00:00Z
  MHCZ,10,Mount Hutt,0,3,2013-05-12T16:00:00Z,2014-04-09T14:02:47Z
  MHEZ,10,Otaraoa Road,0,3,2008-03-03T12:00:00Z,9999-01-01T00:00:00Z
  MHGZ,10,Okepuha Station,0,3,2006-05-03T17:00:01Z,9999-01-01T00:00:00Z
  MILO,10,Millers Flat,0,3,2014-03-11T11:30:00Z,2014-10-06T10:00:00Z
  MKAZ,10,Moumoukai,0,1,2007-05-06T13:00:01Z,9999-01-01T00:00:00Z
  MKAZ,11,Moumoukai,0,3,2002-08-29T12:20:00Z,2003-01-19T05:00:00Z
  MKRZ,10,Makatiti,0,3,2003-05-22T15:00:00Z,9999-01-01T00:00:00Z
  