ID	SUB_REGION
1a	Eastern Africa
1b	Middle Africa
1c	Northern Africa
1d	Southern Africa
1e	Western Africa
3a	Eastern Asia
3b	South-central Asia
3c	South-eastern Asia
3d	Western Asia
4a	Eastern Europe
4b	Northern Europe
4c	Southern Europe
4d	Western Europe
6a	Australia and New Zealand
6b	Melanesia
6c	Micronesia
6d	Polynesia
7a	Caribbean
7b	Central America
7c	North America
7d	South America