First of all, I would like to thank you very much for your outstanding service. Understanding Society is an exceptionally well curated dataset that is a real pleasure to work with. Nevertheless, I am currently facing a bit of a problem. I am interested in (weighted) distributions of various psychological outcomes (cognitive skills, big 5, etc.), granularly broken down by occupational group, as an illustrative supplement to a methodological project I am currently working on. Unfortunately, the freely available version of the dataset only contains condensed occupational classification schemes, such as the three digit version of ISCO-08. Would there be a way to get access to the four digit ISCO codes? If so, how difficult would it be? As I said, ultimately I am not concerned with individual data, but exclusively with weighted parameters on occupational group level.
Many thanks for your help