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Historical Values
Year Value
1996 ZI
1997 ZI
1998 ZI
1998 This entry gives the official US Government digraph that precisely identifies every land entity without overlap, duplication, or omission. AF, for example, is the data code for Afghanistan. This two-letter country code is a standardized geopolitical data element promulgated in the Federal Information Processing Standards Publication (FIPS) 10-4 by the National Institute of Standards and Technology at the US Department of Commerce and maintained by the Office of the Geographer and Global Issues a
1999 ZI
2000 ZI