Understanding Society User Support

Are there cross-walk that map the 1980 and 1992 industry classifications used in the BHPS?

I need to create a variable about the industry in which respondents work that is consistent for the 18 waves of the BHPS. The information is contained in two main variables: jbsic, which uses the UK SIC 1980 classification and is available until 2001 and jbsic92 which uses the UK SIC 1992 classification and is available from 2001 onwards. I would need a cross-walk to map each category of one of the variables to the closest category in the other variable.

I'm sure many users have had similar problems. I would be grateful if you could indicate how to do this.

Thanks!