anchor.diff: -dato,region,Ordinær skatt på utvinning av petroleum,Særskatt på utvinning av petroleum,Skatteinngang i alt
  +dato,Region,Ordinær skatt på utvinning av petroleum,Særskatt på utvinning av petroleum,Skatteinngang i alt
   2008-08,01 Østfold,0.0,0.0,15022.4
   2008-08,02 Akershus,0.0,0.0,45006.6
   2008-08,03 Oslo,0.0,0.0,72663.9
  
positive.code: 2009-04,18 Nordland,0.0,0.0,6471.5
  2009-04,19 Troms - Romsa,0.0,0.0,4077.5
  2009-04,20 Finnmark - Finnmárku,0.0,0.0,1465.5
  2009-04,21 Svalbard,..,..,106.3
  2009-04,23 Kontinentalsokkelen,25950.5,44153.6,71541.4
  2009-04,24 Kildeskatt på pensjon,0.0,0.0,0.0
  2009-04,50 Trøndelag,0.0,0.0,0.0
  
negative.code: 2008-08,18 Nordland,0.0,0.0,10796.2
  2008-08,19 Troms - Romsa,0.0,0.0,7138.0
  2008-08,20 Finnmark - Finnmárku,0.0,0.0,2479.2
  2008-08,21 Svalbard,,,170.0
  2008-08,23 Kontinentalsokkelen,53958.1,90207.7,146366.2
  2008-08,24 Kildeskatt på pensjon,0.0,0.0,0.0
  2008-08,50 Trøndelag,0.0,0.0,0.0
  