Some of the downloaded enumeration area codes from SSB lack
codes for missing ie. xxxx9999. This function create these codes that
are needed for recoding older codes to current enumeration area codes.
Arguments
- dt
 Downloaded data with norgeo::track_change()
- from
 Starting year for the range period. Current year is the default if left empty
- to
 End of year for the range period. Current year is the default if left empty
- type
 Type of regional granularity ie. enumeration area (grunnkrets)
- fix
 Default is TRUE. Use external codes to fix geo changes manually. The codes is sourced from config files depending on the granularity levels.
See also
Other geo codes functions:
geo_map(),
geo_recode()
