The format is:
Formal class 'SpatialPolygonsDataFrame' [package "sp"] with 5 slots; the data 
clot contains a data.frame with 246 obs. of  11 variables:
    - FIPS
- factor of FIPS country codes 
- ISO2
- factor of ISO 2 character country codes 
- ISO3
- factor of ISO 3 character country codes 
- UN
- integer vector of UN country codes 
- NAME
- Factor of country names 
- AREA
- integer vector of area values 
- POP2005
- integer vector of population in 2005 
- REGION
- integer vector of region values 
- SUBREGION
- integer vector of subregion values 
- LON
- numeric vector of longitude label points 
- LAT
- numeric vector of latitude label points 
The object is in geographical coordinates using the WGS84 datum.