Input-output
It should be noted, however, that the tables regarding 1966-1982 have been repeatedly subjected to backward calculations as a result of new methods and classifications, but the tables from 1993 to 2004 have only been subject to a single backward calculation as a result of the data and methods revision in 2014.
https://www.dst.dk/en/Statistik/emner/oekonomi/nationalregnskab/input-output
Subject page