In some cases those data had to be combined with other data from different institutions, since there was some discrepancy between them and/or more diverse data was needed.
Í einhverjum tilvikum þurfti að keyra saman gögn frá mismunandi stofnunum, þar sem misræmi kom fram og/eða þörf var á fjölbreyttari upplýsingum en tiltæk voru.