Extensive changes made to area table records. These are not documented in detail here. Generically these changes include: (i) for all area records with ISO country code and maritime extent, added remarks regarding onshore and offshore extent, and added onshore only records 3212-3332.  (ii) clarifications to area of use where ISO 3166 includes dependencies etc. within a country name; (iii) corrections to erroneously-assigned areas. For (i) and (iii), relevant Datum, CRS and Coord Operation records reassigned new area code - these changes not reflected in change ID in these records.